LXR linux/drivers/net/ethernet/intel/ice/ice

   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright (c) 2018, Intel Corporation. */
   3
   4/* ethtool support for ice */
   5
   6#include "ice.h"
   7#include "ice_lib.h"
   8#include "ice_dcb_lib.h"
   9
  10struct ice_stats {
  11        char stat_string[ETH_GSTRING_LEN];
  12        int sizeof_stat;
  13        int stat_offset;
  14};
  15
  16#define ICE_STAT(_type, _name, _stat) { \
  17        .stat_string = _name, \
  18        .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  19        .stat_offset = offsetof(_type, _stat) \
  20}
  21
  22#define ICE_VSI_STAT(_name, _stat) \
  23                ICE_STAT(struct ice_vsi, _name, _stat)
  24#define ICE_PF_STAT(_name, _stat) \
  25                ICE_STAT(struct ice_pf, _name, _stat)
  26
  27static int ice_q_stats_len(struct net_device *netdev)
  28{
  29        struct ice_netdev_priv *np = netdev_priv(netdev);
  30
  31        return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
  32                (sizeof(struct ice_q_stats) / sizeof(u64)));
  33}
  34
  35#define ICE_PF_STATS_LEN        ARRAY_SIZE(ice_gstrings_pf_stats)
  36#define ICE_VSI_STATS_LEN       ARRAY_SIZE(ice_gstrings_vsi_stats)
  37
  38#define ICE_PFC_STATS_LEN ( \
  39                (FIELD_SIZEOF(struct ice_pf, stats.priority_xoff_rx) + \
  40                 FIELD_SIZEOF(struct ice_pf, stats.priority_xon_rx) + \
  41                 FIELD_SIZEOF(struct ice_pf, stats.priority_xoff_tx) + \
  42                 FIELD_SIZEOF(struct ice_pf, stats.priority_xon_tx)) \
  43                 / sizeof(u64))
  44#define ICE_ALL_STATS_LEN(n)    (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
  45                                 ICE_VSI_STATS_LEN + ice_q_stats_len(n))
  46
  47static const struct ice_stats ice_gstrings_vsi_stats[] = {
  48        ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  49        ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  50        ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  51        ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  52        ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  53        ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  54        ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
  55        ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
  56        ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
  57        ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  58        ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  59        ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  60        ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
  61        ICE_VSI_STAT("tx_linearize", tx_linearize),
  62};
  63
  64enum ice_ethtool_test_id {
  65        ICE_ETH_TEST_REG = 0,
  66        ICE_ETH_TEST_EEPROM,
  67        ICE_ETH_TEST_INTR,
  68        ICE_ETH_TEST_LOOP,
  69        ICE_ETH_TEST_LINK,
  70};
  71
  72static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
  73        "Register test  (offline)",
  74        "EEPROM test    (offline)",
  75        "Interrupt test (offline)",
  76        "Loopback test  (offline)",
  77        "Link test   (on/offline)",
  78};
  79
  80#define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
  81
  82/* These PF_STATs might look like duplicates of some NETDEV_STATs,
  83 * but they aren't. This device is capable of supporting multiple
  84 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
  85 * netdevs whereas the PF_STATs are for the physical function that's
  86 * hosting these netdevs.
  87 *
  88 * The PF_STATs are appended to the netdev stats only when ethtool -S
  89 * is queried on the base PF netdev.
  90 */
  91static const struct ice_stats ice_gstrings_pf_stats[] = {
  92        ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
  93        ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
  94        ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
  95        ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
  96        ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
  97        ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
  98        ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
  99        ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
 100        ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
 101        ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
 102        ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
 103        ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
 104        ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
 105        ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
 106        ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
 107        ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
 108        ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
 109        ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
 110        ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
 111        ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
 112        ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
 113        ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
 114        ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
 115        ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
 116        ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
 117        ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
 118        ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
 119        ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
 120        ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
 121        ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
 122        ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
 123        ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
 124        ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
 125        ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
 126        ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
 127        ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
 128        ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
 129        ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
 130        ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
 131};
 132
 133static const u32 ice_regs_dump_list[] = {
 134        PFGEN_STATE,
 135        PRTGEN_STATUS,
 136        QRX_CTRL(0),
 137        QINT_TQCTL(0),
 138        QINT_RQCTL(0),
 139        PFINT_OICR_ENA,
 140        QRX_ITR(0),
 141        PF0INT_ITR_0(0),
 142        PF0INT_ITR_1(0),
 143        PF0INT_ITR_2(0),
 144};
 145
 146struct ice_priv_flag {
 147        char name[ETH_GSTRING_LEN];
 148        u32 bitno;                      /* bit position in pf->flags */
 149};
 150
 151#define ICE_PRIV_FLAG(_name, _bitno) { \
 152        .name = _name, \
 153        .bitno = _bitno, \
 154}
 155
 156static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
 157        ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
 158        ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
 159};
 160
 161#define ICE_PRIV_FLAG_ARRAY_SIZE        ARRAY_SIZE(ice_gstrings_priv_flags)
 162
 163static void
 164ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 165{
 166        struct ice_netdev_priv *np = netdev_priv(netdev);
 167        struct ice_vsi *vsi = np->vsi;
 168        struct ice_pf *pf = vsi->back;
 169
 170        strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
 171        strlcpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version));
 172        strlcpy(drvinfo->fw_version, ice_nvm_version_str(&pf->hw),
 173                sizeof(drvinfo->fw_version));
 174        strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
 175                sizeof(drvinfo->bus_info));
 176        drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
 177}
 178
 179static int ice_get_regs_len(struct net_device __always_unused *netdev)
 180{
 181        return sizeof(ice_regs_dump_list);
 182}
 183
 184static void
 185ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 186{
 187        struct ice_netdev_priv *np = netdev_priv(netdev);
 188        struct ice_pf *pf = np->vsi->back;
 189        struct ice_hw *hw = &pf->hw;
 190        u32 *regs_buf = (u32 *)p;
 191        int i;
 192
 193        regs->version = 1;
 194
 195        for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
 196                regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
 197}
 198
 199static u32 ice_get_msglevel(struct net_device *netdev)
 200{
 201        struct ice_netdev_priv *np = netdev_priv(netdev);
 202        struct ice_pf *pf = np->vsi->back;
 203
 204#ifndef CONFIG_DYNAMIC_DEBUG
 205        if (pf->hw.debug_mask)
 206                netdev_info(netdev, "hw debug_mask: 0x%llX\n",
 207                            pf->hw.debug_mask);
 208#endif /* !CONFIG_DYNAMIC_DEBUG */
 209
 210        return pf->msg_enable;
 211}
 212
 213static void ice_set_msglevel(struct net_device *netdev, u32 data)
 214{
 215        struct ice_netdev_priv *np = netdev_priv(netdev);
 216        struct ice_pf *pf = np->vsi->back;
 217
 218#ifndef CONFIG_DYNAMIC_DEBUG
 219        if (ICE_DBG_USER & data)
 220                pf->hw.debug_mask = data;
 221        else
 222                pf->msg_enable = data;
 223#else
 224        pf->msg_enable = data;
 225#endif /* !CONFIG_DYNAMIC_DEBUG */
 226}
 227
 228static int ice_get_eeprom_len(struct net_device *netdev)
 229{
 230        struct ice_netdev_priv *np = netdev_priv(netdev);
 231        struct ice_pf *pf = np->vsi->back;
 232
 233        return (int)(pf->hw.nvm.sr_words * sizeof(u16));
 234}
 235
 236static int
 237ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
 238               u8 *bytes)
 239{
 240        struct ice_netdev_priv *np = netdev_priv(netdev);
 241        u16 first_word, last_word, nwords;
 242        struct ice_vsi *vsi = np->vsi;
 243        struct ice_pf *pf = vsi->back;
 244        struct ice_hw *hw = &pf->hw;
 245        enum ice_status status;
 246        struct device *dev;
 247        int ret = 0;
 248        u16 *buf;
 249
 250        dev = &pf->pdev->dev;
 251
 252        eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 253
 254        first_word = eeprom->offset >> 1;
 255        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 256        nwords = last_word - first_word + 1;
 257
 258        buf = devm_kcalloc(dev, nwords, sizeof(u16), GFP_KERNEL);
 259        if (!buf)
 260                return -ENOMEM;
 261
 262        status = ice_read_sr_buf(hw, first_word, &nwords, buf);
 263        if (status) {
 264                dev_err(dev, "ice_read_sr_buf failed, err %d aq_err %d\n",
 265                        status, hw->adminq.sq_last_status);
 266                eeprom->len = sizeof(u16) * nwords;
 267                ret = -EIO;
 268                goto out;
 269        }
 270
 271        memcpy(bytes, (u8 *)buf + (eeprom->offset & 1), eeprom->len);
 272out:
 273        devm_kfree(dev, buf);
 274        return ret;
 275}
 276
 277/**
 278 * ice_active_vfs - check if there are any active VFs
 279 * @pf: board private structure
 280 *
 281 * Returns true if an active VF is found, otherwise returns false
 282 */
 283static bool ice_active_vfs(struct ice_pf *pf)
 284{
 285        struct ice_vf *vf = pf->vf;
 286        int i;
 287
 288        for (i = 0; i < pf->num_alloc_vfs; i++, vf++)
 289                if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
 290                        return true;
 291        return false;
 292}
 293
 294/**
 295 * ice_link_test - perform a link test on a given net_device
 296 * @netdev: network interface device structure
 297 *
 298 * This function performs one of the self-tests required by ethtool.
 299 * Returns 0 on success, non-zero on failure.
 300 */
 301static u64 ice_link_test(struct net_device *netdev)
 302{
 303        struct ice_netdev_priv *np = netdev_priv(netdev);
 304        enum ice_status status;
 305        bool link_up = false;
 306
 307        netdev_info(netdev, "link test\n");
 308        status = ice_get_link_status(np->vsi->port_info, &link_up);
 309        if (status) {
 310                netdev_err(netdev, "link query error, status = %d\n", status);
 311                return 1;
 312        }
 313
 314        if (!link_up)
 315                return 2;
 316
 317        return 0;
 318}
 319
 320/**
 321 * ice_eeprom_test - perform an EEPROM test on a given net_device
 322 * @netdev: network interface device structure
 323 *
 324 * This function performs one of the self-tests required by ethtool.
 325 * Returns 0 on success, non-zero on failure.
 326 */
 327static u64 ice_eeprom_test(struct net_device *netdev)
 328{
 329        struct ice_netdev_priv *np = netdev_priv(netdev);
 330        struct ice_pf *pf = np->vsi->back;
 331
 332        netdev_info(netdev, "EEPROM test\n");
 333        return !!(ice_nvm_validate_checksum(&pf->hw));
 334}
 335
 336/**
 337 * ice_reg_pattern_test
 338 * @hw: pointer to the HW struct
 339 * @reg: reg to be tested
 340 * @mask: bits to be touched
 341 */
 342static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
 343{
 344        struct ice_pf *pf = (struct ice_pf *)hw->back;
 345        static const u32 patterns[] = {
 346                0x5A5A5A5A, 0xA5A5A5A5,
 347                0x00000000, 0xFFFFFFFF
 348        };
 349        u32 val, orig_val;
 350        int i;
 351
 352        orig_val = rd32(hw, reg);
 353        for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
 354                u32 pattern = patterns[i] & mask;
 355
 356                wr32(hw, reg, pattern);
 357                val = rd32(hw, reg);
 358                if (val == pattern)
 359                        continue;
 360                dev_err(&pf->pdev->dev,
 361                        "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
 362                        , __func__, reg, pattern, val);
 363                return 1;
 364        }
 365
 366        wr32(hw, reg, orig_val);
 367        val = rd32(hw, reg);
 368        if (val != orig_val) {
 369                dev_err(&pf->pdev->dev,
 370                        "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
 371                        , __func__, reg, orig_val, val);
 372                return 1;
 373        }
 374
 375        return 0;
 376}
 377
 378/**
 379 * ice_reg_test - perform a register test on a given net_device
 380 * @netdev: network interface device structure
 381 *
 382 * This function performs one of the self-tests required by ethtool.
 383 * Returns 0 on success, non-zero on failure.
 384 */
 385static u64 ice_reg_test(struct net_device *netdev)
 386{
 387        struct ice_netdev_priv *np = netdev_priv(netdev);
 388        struct ice_hw *hw = np->vsi->port_info->hw;
 389        u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
 390                hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
 391        struct ice_diag_reg_test_info {
 392                u32 address;
 393                u32 mask;
 394                u32 elem_num;
 395                u32 elem_size;
 396        } ice_reg_list[] = {
 397                {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 398                        GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
 399                {GLINT_ITR(1, 0), 0x00000fff, int_elements,
 400                        GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
 401                {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 402                        GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
 403                {GLINT_CTL, 0xffff0001, 1, 0}
 404        };
 405        int i;
 406
 407        netdev_dbg(netdev, "Register test\n");
 408        for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
 409                u32 j;
 410
 411                for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
 412                        u32 mask = ice_reg_list[i].mask;
 413                        u32 reg = ice_reg_list[i].address +
 414                                (j * ice_reg_list[i].elem_size);
 415
 416                        /* bail on failure (non-zero return) */
 417                        if (ice_reg_pattern_test(hw, reg, mask))
 418                                return 1;
 419                }
 420        }
 421
 422        return 0;
 423}
 424
 425/**
 426 * ice_lbtest_prepare_rings - configure Tx/Rx test rings
 427 * @vsi: pointer to the VSI structure
 428 *
 429 * Function configures rings of a VSI for loopback test without
 430 * enabling interrupts or informing the kernel about new queues.
 431 *
 432 * Returns 0 on success, negative on failure.
 433 */
 434static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
 435{
 436        int status;
 437
 438        status = ice_vsi_setup_tx_rings(vsi);
 439        if (status)
 440                goto err_setup_tx_ring;
 441
 442        status = ice_vsi_setup_rx_rings(vsi);
 443        if (status)
 444                goto err_setup_rx_ring;
 445
 446        status = ice_vsi_cfg(vsi);
 447        if (status)
 448                goto err_setup_rx_ring;
 449
 450        status = ice_vsi_start_rx_rings(vsi);
 451        if (status)
 452                goto err_start_rx_ring;
 453
 454        return status;
 455
 456err_start_rx_ring:
 457        ice_vsi_free_rx_rings(vsi);
 458err_setup_rx_ring:
 459        ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 460err_setup_tx_ring:
 461        ice_vsi_free_tx_rings(vsi);
 462
 463        return status;
 464}
 465
 466/**
 467 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
 468 * @vsi: pointer to the VSI structure
 469 *
 470 * Function stops and frees VSI rings after a loopback test.
 471 * Returns 0 on success, negative on failure.
 472 */
 473static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
 474{
 475        int status;
 476
 477        status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 478        if (status)
 479                netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
 480                           vsi->vsi_num, status);
 481
 482        status = ice_vsi_stop_rx_rings(vsi);
 483        if (status)
 484                netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
 485                           vsi->vsi_num, status);
 486
 487        ice_vsi_free_tx_rings(vsi);
 488        ice_vsi_free_rx_rings(vsi);
 489
 490        return status;
 491}
 492
 493/**
 494 * ice_lbtest_create_frame - create test packet
 495 * @pf: pointer to the PF structure
 496 * @ret_data: allocated frame buffer
 497 * @size: size of the packet data
 498 *
 499 * Function allocates a frame with a test pattern on specific offsets.
 500 * Returns 0 on success, non-zero on failure.
 501 */
 502static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
 503{
 504        u8 *data;
 505
 506        if (!pf)
 507                return -EINVAL;
 508
 509        data = devm_kzalloc(&pf->pdev->dev, size, GFP_KERNEL);
 510        if (!data)
 511                return -ENOMEM;
 512
 513        /* Since the ethernet test frame should always be at least
 514         * 64 bytes long, fill some octets in the payload with test data.
 515         */
 516        memset(data, 0xFF, size);
 517        data[32] = 0xDE;
 518        data[42] = 0xAD;
 519        data[44] = 0xBE;
 520        data[46] = 0xEF;
 521
 522        *ret_data = data;
 523
 524        return 0;
 525}
 526
 527/**
 528 * ice_lbtest_check_frame - verify received loopback frame
 529 * @frame: pointer to the raw packet data
 530 *
 531 * Function verifies received test frame with a pattern.
 532 * Returns true if frame matches the pattern, false otherwise.
 533 */
 534static bool ice_lbtest_check_frame(u8 *frame)
 535{
 536        /* Validate bytes of a frame under offsets chosen earlier */
 537        if (frame[32] == 0xDE &&
 538            frame[42] == 0xAD &&
 539            frame[44] == 0xBE &&
 540            frame[46] == 0xEF &&
 541            frame[48] == 0xFF)
 542                return true;
 543
 544        return false;
 545}
 546
 547/**
 548 * ice_diag_send - send test frames to the test ring
 549 * @tx_ring: pointer to the transmit ring
 550 * @data: pointer to the raw packet data
 551 * @size: size of the packet to send
 552 *
 553 * Function sends loopback packets on a test Tx ring.
 554 */
 555static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
 556{
 557        struct ice_tx_desc *tx_desc;
 558        struct ice_tx_buf *tx_buf;
 559        dma_addr_t dma;
 560        u64 td_cmd;
 561
 562        tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
 563        tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
 564
 565        dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
 566        if (dma_mapping_error(tx_ring->dev, dma))
 567                return -EINVAL;
 568
 569        tx_desc->buf_addr = cpu_to_le64(dma);
 570
 571        /* These flags are required for a descriptor to be pushed out */
 572        td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
 573        tx_desc->cmd_type_offset_bsz =
 574                cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
 575                            (td_cmd << ICE_TXD_QW1_CMD_S) |
 576                            ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
 577                            ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
 578                            ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
 579
 580        tx_buf->next_to_watch = tx_desc;
 581
 582        /* Force memory write to complete before letting h/w know
 583         * there are new descriptors to fetch.
 584         */
 585        wmb();
 586
 587        tx_ring->next_to_use++;
 588        if (tx_ring->next_to_use >= tx_ring->count)
 589                tx_ring->next_to_use = 0;
 590
 591        writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
 592
 593        /* Wait until the packets get transmitted to the receive queue. */
 594        usleep_range(1000, 2000);
 595        dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
 596
 597        return 0;
 598}
 599
 600#define ICE_LB_FRAME_SIZE 64
 601/**
 602 * ice_lbtest_receive_frames - receive and verify test frames
 603 * @rx_ring: pointer to the receive ring
 604 *
 605 * Function receives loopback packets and verify their correctness.
 606 * Returns number of received valid frames.
 607 */
 608static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
 609{
 610        struct ice_rx_buf *rx_buf;
 611        int valid_frames, i;
 612        u8 *received_buf;
 613
 614        valid_frames = 0;
 615
 616        for (i = 0; i < rx_ring->count; i++) {
 617                union ice_32b_rx_flex_desc *rx_desc;
 618
 619                rx_desc = ICE_RX_DESC(rx_ring, i);
 620
 621                if (!(rx_desc->wb.status_error0 &
 622                    cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS)))
 623                        continue;
 624
 625                rx_buf = &rx_ring->rx_buf[i];
 626                received_buf = page_address(rx_buf->page);
 627
 628                if (ice_lbtest_check_frame(received_buf))
 629                        valid_frames++;
 630        }
 631
 632        return valid_frames;
 633}
 634
 635/**
 636 * ice_loopback_test - perform a loopback test on a given net_device
 637 * @netdev: network interface device structure
 638 *
 639 * This function performs one of the self-tests required by ethtool.
 640 * Returns 0 on success, non-zero on failure.
 641 */
 642static u64 ice_loopback_test(struct net_device *netdev)
 643{
 644        struct ice_netdev_priv *np = netdev_priv(netdev);
 645        struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
 646        struct ice_pf *pf = orig_vsi->back;
 647        struct ice_ring *tx_ring, *rx_ring;
 648        u8 broadcast[ETH_ALEN], ret = 0;
 649        int num_frames, valid_frames;
 650        LIST_HEAD(tmp_list);
 651        u8 *tx_frame;
 652        int i;
 653
 654        netdev_info(netdev, "loopback test\n");
 655
 656        test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
 657        if (!test_vsi) {
 658                netdev_err(netdev, "Failed to create a VSI for the loopback test");
 659                return 1;
 660        }
 661
 662        test_vsi->netdev = netdev;
 663        tx_ring = test_vsi->tx_rings[0];
 664        rx_ring = test_vsi->rx_rings[0];
 665
 666        if (ice_lbtest_prepare_rings(test_vsi)) {
 667                ret = 2;
 668                goto lbtest_vsi_close;
 669        }
 670
 671        if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
 672                ret = 3;
 673                goto lbtest_rings_dis;
 674        }
 675
 676        /* Enable MAC loopback in firmware */
 677        if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
 678                ret = 4;
 679                goto lbtest_mac_dis;
 680        }
 681
 682        /* Test VSI needs to receive broadcast packets */
 683        eth_broadcast_addr(broadcast);
 684        if (ice_add_mac_to_list(test_vsi, &tmp_list, broadcast)) {
 685                ret = 5;
 686                goto lbtest_mac_dis;
 687        }
 688
 689        if (ice_add_mac(&pf->hw, &tmp_list)) {
 690                ret = 6;
 691                goto free_mac_list;
 692        }
 693
 694        if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
 695                ret = 7;
 696                goto remove_mac_filters;
 697        }
 698
 699        num_frames = min_t(int, tx_ring->count, 32);
 700        for (i = 0; i < num_frames; i++) {
 701                if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
 702                        ret = 8;
 703                        goto lbtest_free_frame;
 704                }
 705        }
 706
 707        valid_frames = ice_lbtest_receive_frames(rx_ring);
 708        if (!valid_frames)
 709                ret = 9;
 710        else if (valid_frames != num_frames)
 711                ret = 10;
 712
 713lbtest_free_frame:
 714        devm_kfree(&pf->pdev->dev, tx_frame);
 715remove_mac_filters:
 716        if (ice_remove_mac(&pf->hw, &tmp_list))
 717                netdev_err(netdev, "Could not remove MAC filter for the test VSI");
 718free_mac_list:
 719        ice_free_fltr_list(&pf->pdev->dev, &tmp_list);
 720lbtest_mac_dis:
 721        /* Disable MAC loopback after the test is completed. */
 722        if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
 723                netdev_err(netdev, "Could not disable MAC loopback\n");
 724lbtest_rings_dis:
 725        if (ice_lbtest_disable_rings(test_vsi))
 726                netdev_err(netdev, "Could not disable test rings\n");
 727lbtest_vsi_close:
 728        test_vsi->netdev = NULL;
 729        if (ice_vsi_release(test_vsi))
 730                netdev_err(netdev, "Failed to remove the test VSI");
 731
 732        return ret;
 733}
 734
 735/**
 736 * ice_intr_test - perform an interrupt test on a given net_device
 737 * @netdev: network interface device structure
 738 *
 739 * This function performs one of the self-tests required by ethtool.
 740 * Returns 0 on success, non-zero on failure.
 741 */
 742static u64 ice_intr_test(struct net_device *netdev)
 743{
 744        struct ice_netdev_priv *np = netdev_priv(netdev);
 745        struct ice_pf *pf = np->vsi->back;
 746        u16 swic_old = pf->sw_int_count;
 747
 748        netdev_info(netdev, "interrupt test\n");
 749
 750        wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
 751             GLINT_DYN_CTL_SW_ITR_INDX_M |
 752             GLINT_DYN_CTL_INTENA_MSK_M |
 753             GLINT_DYN_CTL_SWINT_TRIG_M);
 754
 755        usleep_range(1000, 2000);
 756        return (swic_old == pf->sw_int_count);
 757}
 758
 759/**
 760 * ice_self_test - handler function for performing a self-test by ethtool
 761 * @netdev: network interface device structure
 762 * @eth_test: ethtool_test structure
 763 * @data: required by ethtool.self_test
 764 *
 765 * This function is called after invoking 'ethtool -t devname' command where
 766 * devname is the name of the network device on which ethtool should operate.
 767 * It performs a set of self-tests to check if a device works properly.
 768 */
 769static void
 770ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
 771              u64 *data)
 772{
 773        struct ice_netdev_priv *np = netdev_priv(netdev);
 774        bool if_running = netif_running(netdev);
 775        struct ice_pf *pf = np->vsi->back;
 776
 777        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 778                netdev_info(netdev, "offline testing starting\n");
 779
 780                set_bit(__ICE_TESTING, pf->state);
 781
 782                if (ice_active_vfs(pf)) {
 783                        dev_warn(&pf->pdev->dev,
 784                                 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
 785                        data[ICE_ETH_TEST_REG] = 1;
 786                        data[ICE_ETH_TEST_EEPROM] = 1;
 787                        data[ICE_ETH_TEST_INTR] = 1;
 788                        data[ICE_ETH_TEST_LOOP] = 1;
 789                        data[ICE_ETH_TEST_LINK] = 1;
 790                        eth_test->flags |= ETH_TEST_FL_FAILED;
 791                        clear_bit(__ICE_TESTING, pf->state);
 792                        goto skip_ol_tests;
 793                }
 794                /* If the device is online then take it offline */
 795                if (if_running)
 796                        /* indicate we're in test mode */
 797                        ice_stop(netdev);
 798
 799                data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 800                data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
 801                data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
 802                data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
 803                data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
 804
 805                if (data[ICE_ETH_TEST_LINK] ||
 806                    data[ICE_ETH_TEST_EEPROM] ||
 807                    data[ICE_ETH_TEST_LOOP] ||
 808                    data[ICE_ETH_TEST_INTR] ||
 809                    data[ICE_ETH_TEST_REG])
 810                        eth_test->flags |= ETH_TEST_FL_FAILED;
 811
 812                clear_bit(__ICE_TESTING, pf->state);
 813
 814                if (if_running) {
 815                        int status = ice_open(netdev);
 816
 817                        if (status) {
 818                                dev_err(&pf->pdev->dev,
 819                                        "Could not open device %s, err %d",
 820                                        pf->int_name, status);
 821                        }
 822                }
 823        } else {
 824                /* Online tests */
 825                netdev_info(netdev, "online testing starting\n");
 826
 827                data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 828                if (data[ICE_ETH_TEST_LINK])
 829                        eth_test->flags |= ETH_TEST_FL_FAILED;
 830
 831                /* Offline only tests, not run in online; pass by default */
 832                data[ICE_ETH_TEST_REG] = 0;
 833                data[ICE_ETH_TEST_EEPROM] = 0;
 834                data[ICE_ETH_TEST_INTR] = 0;
 835                data[ICE_ETH_TEST_LOOP] = 0;
 836        }
 837
 838skip_ol_tests:
 839        netdev_info(netdev, "testing finished\n");
 840}
 841
 842static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 843{
 844        struct ice_netdev_priv *np = netdev_priv(netdev);
 845        struct ice_vsi *vsi = np->vsi;
 846        char *p = (char *)data;
 847        unsigned int i;
 848
 849        switch (stringset) {
 850        case ETH_SS_STATS:
 851                for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
 852                        snprintf(p, ETH_GSTRING_LEN, "%s",
 853                                 ice_gstrings_vsi_stats[i].stat_string);
 854                        p += ETH_GSTRING_LEN;
 855                }
 856
 857                ice_for_each_alloc_txq(vsi, i) {
 858                        snprintf(p, ETH_GSTRING_LEN,
 859                                 "tx_queue_%u_packets", i);
 860                        p += ETH_GSTRING_LEN;
 861                        snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
 862                        p += ETH_GSTRING_LEN;
 863                }
 864
 865                ice_for_each_alloc_rxq(vsi, i) {
 866                        snprintf(p, ETH_GSTRING_LEN,
 867                                 "rx_queue_%u_packets", i);
 868                        p += ETH_GSTRING_LEN;
 869                        snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
 870                        p += ETH_GSTRING_LEN;
 871                }
 872
 873                if (vsi->type != ICE_VSI_PF)
 874                        return;
 875
 876                for (i = 0; i < ICE_PF_STATS_LEN; i++) {
 877                        snprintf(p, ETH_GSTRING_LEN, "%s",
 878                                 ice_gstrings_pf_stats[i].stat_string);
 879                        p += ETH_GSTRING_LEN;
 880                }
 881
 882                for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 883                        snprintf(p, ETH_GSTRING_LEN,
 884                                 "tx_priority_%u_xon.nic", i);
 885                        p += ETH_GSTRING_LEN;
 886                        snprintf(p, ETH_GSTRING_LEN,
 887                                 "tx_priority_%u_xoff.nic", i);
 888                        p += ETH_GSTRING_LEN;
 889                }
 890                for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 891                        snprintf(p, ETH_GSTRING_LEN,
 892                                 "rx_priority_%u_xon.nic", i);
 893                        p += ETH_GSTRING_LEN;
 894                        snprintf(p, ETH_GSTRING_LEN,
 895                                 "rx_priority_%u_xoff.nic", i);
 896                        p += ETH_GSTRING_LEN;
 897                }
 898                break;
 899        case ETH_SS_TEST:
 900                memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
 901                break;
 902        case ETH_SS_PRIV_FLAGS:
 903                for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
 904                        snprintf(p, ETH_GSTRING_LEN, "%s",
 905                                 ice_gstrings_priv_flags[i].name);
 906                        p += ETH_GSTRING_LEN;
 907                }
 908                break;
 909        default:
 910                break;
 911        }
 912}
 913
 914static int
 915ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
 916{
 917        struct ice_netdev_priv *np = netdev_priv(netdev);
 918        bool led_active;
 919
 920        switch (state) {
 921        case ETHTOOL_ID_ACTIVE:
 922                led_active = true;
 923                break;
 924        case ETHTOOL_ID_INACTIVE:
 925                led_active = false;
 926                break;
 927        default:
 928                return -EINVAL;
 929        }
 930
 931        if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
 932                return -EIO;
 933
 934        return 0;
 935}
 936
 937/**
 938 * ice_set_fec_cfg - Set link FEC options
 939 * @netdev: network interface device structure
 940 * @req_fec: FEC mode to configure
 941 */
 942static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
 943{
 944        struct ice_netdev_priv *np = netdev_priv(netdev);
 945        struct ice_aqc_set_phy_cfg_data config = { 0 };
 946        struct ice_aqc_get_phy_caps_data *caps;
 947        struct ice_vsi *vsi = np->vsi;
 948        u8 sw_cfg_caps, sw_cfg_fec;
 949        struct ice_port_info *pi;
 950        enum ice_status status;
 951        int err = 0;
 952
 953        pi = vsi->port_info;
 954        if (!pi)
 955                return -EOPNOTSUPP;
 956
 957        /* Changing the FEC parameters is not supported if not the PF VSI */
 958        if (vsi->type != ICE_VSI_PF) {
 959                netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
 960                return -EOPNOTSUPP;
 961        }
 962
 963        /* Get last SW configuration */
 964        caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
 965        if (!caps)
 966                return -ENOMEM;
 967
 968        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG,
 969                                     caps, NULL);
 970        if (status) {
 971                err = -EAGAIN;
 972                goto done;
 973        }
 974
 975        /* Copy SW configuration returned from PHY caps to PHY config */
 976        ice_copy_phy_caps_to_cfg(caps, &config);
 977        sw_cfg_caps = caps->caps;
 978        sw_cfg_fec = caps->link_fec_options;
 979
 980        /* Get toloplogy caps, then copy PHY FEC topoloy caps to PHY config */
 981        memset(caps, 0, sizeof(*caps));
 982
 983        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
 984                                     caps, NULL);
 985        if (status) {
 986                err = -EAGAIN;
 987                goto done;
 988        }
 989
 990        config.caps |= (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC);
 991        config.link_fec_opt = caps->link_fec_options;
 992
 993        ice_cfg_phy_fec(&config, req_fec);
 994
 995        /* If FEC mode has changed, then set PHY configuration and enable AN. */
 996        if ((config.caps & ICE_AQ_PHY_ENA_AUTO_FEC) !=
 997            (sw_cfg_caps & ICE_AQC_PHY_EN_AUTO_FEC) ||
 998            config.link_fec_opt != sw_cfg_fec) {
 999                if (caps->caps & ICE_AQC_PHY_AN_MODE)
1000                        config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;

1001
1002                status = ice_aq_set_phy_cfg(pi->hw, pi->lport, &config, NULL);
1003
1004                if (status)
1005                        err = -EAGAIN;
1006        }
1007
1008done:
1009        devm_kfree(&vsi->back->pdev->dev, caps);
1010        return err;
1011}
1012
1013/**
1014 * ice_set_fecparam - Set FEC link options
1015 * @netdev: network interface device structure
1016 * @fecparam: Ethtool structure to retrieve FEC parameters
1017 */
1018static int
1019ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1020{
1021        struct ice_netdev_priv *np = netdev_priv(netdev);
1022        struct ice_vsi *vsi = np->vsi;
1023        enum ice_fec_mode fec;
1024
1025        switch (fecparam->fec) {
1026        case ETHTOOL_FEC_AUTO:
1027                fec = ICE_FEC_AUTO;
1028                break;
1029        case ETHTOOL_FEC_RS:
1030                fec = ICE_FEC_RS;
1031                break;
1032        case ETHTOOL_FEC_BASER:
1033                fec = ICE_FEC_BASER;
1034                break;
1035        case ETHTOOL_FEC_OFF:
1036        case ETHTOOL_FEC_NONE:
1037                fec = ICE_FEC_NONE;
1038                break;
1039        default:
1040                dev_warn(&vsi->back->pdev->dev, "Unsupported FEC mode: %d\n",
1041                         fecparam->fec);
1042                return -EINVAL;
1043        }
1044
1045        return ice_set_fec_cfg(netdev, fec);
1046}
1047
1048/**
1049 * ice_get_fecparam - Get link FEC options
1050 * @netdev: network interface device structure
1051 * @fecparam: Ethtool structure to retrieve FEC parameters
1052 */
1053static int
1054ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1055{
1056        struct ice_netdev_priv *np = netdev_priv(netdev);
1057        struct ice_aqc_get_phy_caps_data *caps;
1058        struct ice_link_status *link_info;
1059        struct ice_vsi *vsi = np->vsi;
1060        struct ice_port_info *pi;
1061        enum ice_status status;
1062        int err = 0;
1063
1064        pi = vsi->port_info;
1065
1066        if (!pi)
1067                return -EOPNOTSUPP;
1068        link_info = &pi->phy.link_info;
1069
1070        /* Set FEC mode based on negotiated link info */
1071        switch (link_info->fec_info) {
1072        case ICE_AQ_LINK_25G_KR_FEC_EN:
1073                fecparam->active_fec = ETHTOOL_FEC_BASER;
1074                break;
1075        case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1076                /* fall through */
1077        case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1078                fecparam->active_fec = ETHTOOL_FEC_RS;
1079                break;
1080        default:
1081                fecparam->active_fec = ETHTOOL_FEC_OFF;
1082                break;
1083        }
1084
1085        caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
1086        if (!caps)
1087                return -ENOMEM;
1088
1089        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
1090                                     caps, NULL);
1091        if (status) {
1092                err = -EAGAIN;
1093                goto done;
1094        }
1095
1096        /* Set supported/configured FEC modes based on PHY capability */
1097        if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1098                fecparam->fec |= ETHTOOL_FEC_AUTO;
1099        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1100            caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1101            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1102            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1103                fecparam->fec |= ETHTOOL_FEC_BASER;
1104        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1105            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1106            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1107                fecparam->fec |= ETHTOOL_FEC_RS;
1108        if (caps->link_fec_options == 0)
1109                fecparam->fec |= ETHTOOL_FEC_OFF;
1110
1111done:
1112        devm_kfree(&vsi->back->pdev->dev, caps);
1113        return err;
1114}
1115
1116/**
1117 * ice_get_priv_flags - report device private flags
1118 * @netdev: network interface device structure
1119 *
1120 * The get string set count and the string set should be matched for each
1121 * flag returned.  Add new strings for each flag to the ice_gstrings_priv_flags
1122 * array.
1123 *
1124 * Returns a u32 bitmap of flags.
1125 */
1126static u32 ice_get_priv_flags(struct net_device *netdev)
1127{
1128        struct ice_netdev_priv *np = netdev_priv(netdev);
1129        struct ice_vsi *vsi = np->vsi;
1130        struct ice_pf *pf = vsi->back;
1131        u32 i, ret_flags = 0;
1132
1133        for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1134                const struct ice_priv_flag *priv_flag;
1135
1136                priv_flag = &ice_gstrings_priv_flags[i];
1137
1138                if (test_bit(priv_flag->bitno, pf->flags))
1139                        ret_flags |= BIT(i);
1140        }
1141
1142        return ret_flags;
1143}
1144
1145/**
1146 * ice_set_priv_flags - set private flags
1147 * @netdev: network interface device structure
1148 * @flags: bit flags to be set
1149 */
1150static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1151{
1152        struct ice_netdev_priv *np = netdev_priv(netdev);
1153        DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1154        DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1155        struct ice_vsi *vsi = np->vsi;
1156        struct ice_pf *pf = vsi->back;
1157        int ret = 0;
1158        u32 i;
1159
1160        if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1161                return -EINVAL;
1162
1163        set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1164
1165        bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1166        for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1167                const struct ice_priv_flag *priv_flag;
1168
1169                priv_flag = &ice_gstrings_priv_flags[i];
1170
1171                if (flags & BIT(i))
1172                        set_bit(priv_flag->bitno, pf->flags);
1173                else
1174                        clear_bit(priv_flag->bitno, pf->flags);
1175        }
1176
1177        bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1178
1179        if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1180                if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1181                        enum ice_status status;
1182
1183                        /* Disable FW LLDP engine */
1184                        status = ice_cfg_lldp_mib_change(&pf->hw, false);
1185
1186                        /* If unregistering for LLDP events fails, this is
1187                         * not an error state, as there shouldn't be any
1188                         * events to respond to.
1189                         */
1190                        if (status)
1191                                dev_info(&pf->pdev->dev,
1192                                         "Failed to unreg for LLDP events\n");
1193
1194                        /* The AQ call to stop the FW LLDP agent will generate
1195                         * an error if the agent is already stopped.
1196                         */
1197                        status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1198                        if (status)
1199                                dev_warn(&pf->pdev->dev,
1200                                         "Fail to stop LLDP agent\n");
1201                        /* Use case for having the FW LLDP agent stopped
1202                         * will likely not need DCB, so failure to init is
1203                         * not a concern of ethtool
1204                         */
1205                        status = ice_init_pf_dcb(pf, true);
1206                        if (status)
1207                                dev_warn(&pf->pdev->dev, "Fail to init DCB\n");
1208
1209                        /* Forward LLDP packets to default VSI so that they
1210                         * are passed up the stack
1211                         */
1212                        ice_cfg_sw_lldp(vsi, false, true);
1213                } else {
1214                        enum ice_status status;
1215                        bool dcbx_agent_status;
1216
1217                        /* AQ command to start FW LLDP agent will return an
1218                         * error if the agent is already started
1219                         */
1220                        status = ice_aq_start_lldp(&pf->hw, true, NULL);
1221                        if (status)
1222                                dev_warn(&pf->pdev->dev,
1223                                         "Fail to start LLDP Agent\n");
1224
1225                        /* AQ command to start FW DCBX agent will fail if
1226                         * the agent is already started
1227                         */
1228                        status = ice_aq_start_stop_dcbx(&pf->hw, true,
1229                                                        &dcbx_agent_status,
1230                                                        NULL);
1231                        if (status)
1232                                dev_dbg(&pf->pdev->dev,
1233                                        "Failed to start FW DCBX\n");
1234
1235                        dev_info(&pf->pdev->dev, "FW DCBX agent is %s\n",
1236                                 dcbx_agent_status ? "ACTIVE" : "DISABLED");
1237
1238                        /* Failure to configure MIB change or init DCB is not
1239                         * relevant to ethtool.  Print notification that
1240                         * registration/init failed but do not return error
1241                         * state to ethtool
1242                         */
1243                        status = ice_init_pf_dcb(pf, true);
1244                        if (status)
1245                                dev_dbg(&pf->pdev->dev, "Fail to init DCB\n");
1246
1247                        /* Remove rule to direct LLDP packets to default VSI.
1248                         * The FW LLDP engine will now be consuming them.
1249                         */
1250                        ice_cfg_sw_lldp(vsi, false, false);
1251
1252                        /* Register for MIB change events */
1253                        status = ice_cfg_lldp_mib_change(&pf->hw, true);
1254                        if (status)
1255                                dev_dbg(&pf->pdev->dev,
1256                                        "Fail to enable MIB change events\n");
1257                }
1258        }
1259        clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1260        return ret;
1261}
1262
1263static int ice_get_sset_count(struct net_device *netdev, int sset)
1264{
1265        switch (sset) {
1266        case ETH_SS_STATS:
1267                /* The number (and order) of strings reported *must* remain
1268                 * constant for a given netdevice. This function must not
1269                 * report a different number based on run time parameters
1270                 * (such as the number of queues in use, or the setting of
1271                 * a private ethtool flag). This is due to the nature of the
1272                 * ethtool stats API.
1273                 *
1274                 * Userspace programs such as ethtool must make 3 separate
1275                 * ioctl requests, one for size, one for the strings, and
1276                 * finally one for the stats. Since these cross into
1277                 * userspace, changes to the number or size could result in
1278                 * undefined memory access or incorrect string<->value
1279                 * correlations for statistics.
1280                 *
1281                 * Even if it appears to be safe, changes to the size or
1282                 * order of strings will suffer from race conditions and are
1283                 * not safe.
1284                 */
1285                return ICE_ALL_STATS_LEN(netdev);
1286        case ETH_SS_TEST:
1287                return ICE_TEST_LEN;
1288        case ETH_SS_PRIV_FLAGS:
1289                return ICE_PRIV_FLAG_ARRAY_SIZE;
1290        default:
1291                return -EOPNOTSUPP;
1292        }
1293}
1294
1295static void
1296ice_get_ethtool_stats(struct net_device *netdev,
1297                      struct ethtool_stats __always_unused *stats, u64 *data)
1298{
1299        struct ice_netdev_priv *np = netdev_priv(netdev);
1300        struct ice_vsi *vsi = np->vsi;
1301        struct ice_pf *pf = vsi->back;
1302        struct ice_ring *ring;
1303        unsigned int j;
1304        int i = 0;
1305        char *p;
1306
1307        ice_update_pf_stats(pf);
1308        ice_update_vsi_stats(vsi);
1309
1310        for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1311                p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1312                data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1313                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1314        }
1315
1316        /* populate per queue stats */
1317        rcu_read_lock();
1318
1319        ice_for_each_alloc_txq(vsi, j) {
1320                ring = READ_ONCE(vsi->tx_rings[j]);
1321                if (ring) {
1322                        data[i++] = ring->stats.pkts;
1323                        data[i++] = ring->stats.bytes;
1324                } else {
1325                        data[i++] = 0;
1326                        data[i++] = 0;
1327                }
1328        }
1329
1330        ice_for_each_alloc_rxq(vsi, j) {
1331                ring = READ_ONCE(vsi->rx_rings[j]);
1332                if (ring) {
1333                        data[i++] = ring->stats.pkts;
1334                        data[i++] = ring->stats.bytes;
1335                } else {
1336                        data[i++] = 0;
1337                        data[i++] = 0;
1338                }
1339        }
1340
1341        rcu_read_unlock();
1342
1343        if (vsi->type != ICE_VSI_PF)
1344                return;
1345
1346        for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1347                p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1348                data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1349                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1350        }
1351
1352        for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1353                data[i++] = pf->stats.priority_xon_tx[j];
1354                data[i++] = pf->stats.priority_xoff_tx[j];
1355        }
1356
1357        for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1358                data[i++] = pf->stats.priority_xon_rx[j];
1359                data[i++] = pf->stats.priority_xoff_rx[j];
1360        }
1361}
1362
1363/**
1364 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1365 * @netdev: network interface device structure
1366 * @ks: ethtool link ksettings struct to fill out
1367 */
1368static void
1369ice_phy_type_to_ethtool(struct net_device *netdev,
1370                        struct ethtool_link_ksettings *ks)
1371{
1372        struct ice_netdev_priv *np = netdev_priv(netdev);
1373        struct ice_link_status *hw_link_info;
1374        bool need_add_adv_mode = false;
1375        struct ice_vsi *vsi = np->vsi;
1376        u64 phy_types_high;
1377        u64 phy_types_low;
1378
1379        hw_link_info = &vsi->port_info->phy.link_info;
1380        phy_types_low = vsi->port_info->phy.phy_type_low;
1381        phy_types_high = vsi->port_info->phy.phy_type_high;
1382
1383        ethtool_link_ksettings_zero_link_mode(ks, supported);
1384        ethtool_link_ksettings_zero_link_mode(ks, advertising);
1385
1386        if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1387            phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) {
1388                ethtool_link_ksettings_add_link_mode(ks, supported,
1389                                                     100baseT_Full);
1390                if (!hw_link_info->req_speeds ||
1391                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB)
1392                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1393                                                             100baseT_Full);
1394        }
1395        if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1396            phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) {
1397                ethtool_link_ksettings_add_link_mode(ks, supported,
1398                                                     1000baseT_Full);
1399                if (!hw_link_info->req_speeds ||
1400                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1401                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1402                                                             1000baseT_Full);
1403        }
1404        if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) {
1405                ethtool_link_ksettings_add_link_mode(ks, supported,
1406                                                     1000baseKX_Full);
1407                if (!hw_link_info->req_speeds ||
1408                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1409                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1410                                                             1000baseKX_Full);
1411        }
1412        if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX ||
1413            phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) {
1414                ethtool_link_ksettings_add_link_mode(ks, supported,
1415                                                     1000baseX_Full);
1416                if (!hw_link_info->req_speeds ||
1417                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1418                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1419                                                             1000baseX_Full);
1420        }
1421        if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) {
1422                ethtool_link_ksettings_add_link_mode(ks, supported,
1423                                                     2500baseT_Full);
1424                if (!hw_link_info->req_speeds ||
1425                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1426                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1427                                                             2500baseT_Full);
1428        }
1429        if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X ||
1430            phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) {
1431                ethtool_link_ksettings_add_link_mode(ks, supported,
1432                                                     2500baseX_Full);
1433                if (!hw_link_info->req_speeds ||
1434                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1435                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1436                                                             2500baseX_Full);
1437        }
1438        if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1439            phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) {
1440                ethtool_link_ksettings_add_link_mode(ks, supported,
1441                                                     5000baseT_Full);
1442                if (!hw_link_info->req_speeds ||
1443                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB)
1444                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1445                                                             5000baseT_Full);
1446        }
1447        if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1448            phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA ||
1449            phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
1450            phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) {
1451                ethtool_link_ksettings_add_link_mode(ks, supported,
1452                                                     10000baseT_Full);
1453                if (!hw_link_info->req_speeds ||
1454                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1455                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1456                                                             10000baseT_Full);
1457        }
1458        if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) {
1459                ethtool_link_ksettings_add_link_mode(ks, supported,
1460                                                     10000baseKR_Full);
1461                if (!hw_link_info->req_speeds ||
1462                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1463                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1464                                                             10000baseKR_Full);
1465        }
1466        if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) {
1467                ethtool_link_ksettings_add_link_mode(ks, supported,
1468                                                     10000baseSR_Full);
1469                if (!hw_link_info->req_speeds ||
1470                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1471                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1472                                                             10000baseSR_Full);
1473        }
1474        if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) {
1475                ethtool_link_ksettings_add_link_mode(ks, supported,
1476                                                     10000baseLR_Full);
1477                if (!hw_link_info->req_speeds ||
1478                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1479                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1480                                                             10000baseLR_Full);
1481        }
1482        if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1483            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1484            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1485            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1486            phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC ||
1487            phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) {
1488                ethtool_link_ksettings_add_link_mode(ks, supported,
1489                                                     25000baseCR_Full);
1490                if (!hw_link_info->req_speeds ||
1491                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1492                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1493                                                             25000baseCR_Full);
1494        }
1495        if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR ||
1496            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) {
1497                ethtool_link_ksettings_add_link_mode(ks, supported,
1498                                                     25000baseSR_Full);
1499                if (!hw_link_info->req_speeds ||
1500                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1501                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1502                                                             25000baseSR_Full);
1503        }
1504        if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1505            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1506            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) {
1507                ethtool_link_ksettings_add_link_mode(ks, supported,
1508                                                     25000baseKR_Full);
1509                if (!hw_link_info->req_speeds ||
1510                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1511                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1512                                                             25000baseKR_Full);
1513        }
1514        if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1515                ethtool_link_ksettings_add_link_mode(ks, supported,
1516                                                     40000baseKR4_Full);
1517                if (!hw_link_info->req_speeds ||
1518                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1519                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1520                                                             40000baseKR4_Full);
1521        }
1522        if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1523            phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC ||
1524            phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) {
1525                ethtool_link_ksettings_add_link_mode(ks, supported,
1526                                                     40000baseCR4_Full);
1527                if (!hw_link_info->req_speeds ||
1528                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1529                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1530                                                             40000baseCR4_Full);
1531        }
1532        if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) {
1533                ethtool_link_ksettings_add_link_mode(ks, supported,
1534                                                     40000baseSR4_Full);
1535                if (!hw_link_info->req_speeds ||
1536                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1537                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1538                                                             40000baseSR4_Full);
1539        }
1540        if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) {
1541                ethtool_link_ksettings_add_link_mode(ks, supported,
1542                                                     40000baseLR4_Full);
1543                if (!hw_link_info->req_speeds ||
1544                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1545                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1546                                                             40000baseLR4_Full);
1547        }
1548        if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1549            phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC ||
1550            phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2 ||
1551            phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC ||
1552            phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2 ||
1553            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1554            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR ||
1555            phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC ||
1556            phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1) {
1557                ethtool_link_ksettings_add_link_mode(ks, supported,
1558                                                     50000baseCR2_Full);
1559                if (!hw_link_info->req_speeds ||
1560                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1561                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1562                                                             50000baseCR2_Full);
1563        }
1564        if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1565            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1566                ethtool_link_ksettings_add_link_mode(ks, supported,
1567                                                     50000baseKR2_Full);
1568                if (!hw_link_info->req_speeds ||
1569                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1570                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1571                                                             50000baseKR2_Full);
1572        }
1573        if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR2 ||
1574            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR2 ||
1575            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_FR ||
1576            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR) {
1577                ethtool_link_ksettings_add_link_mode(ks, supported,
1578                                                     50000baseSR2_Full);
1579                if (!hw_link_info->req_speeds ||
1580                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1581                        ethtool_link_ksettings_add_link_mode(ks, advertising,
1582                                                             50000baseSR2_Full);
1583        }
1584        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1585            phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC ||
1586            phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4 ||
1587            phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC ||
1588            phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4 ||
1589            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 ||
1590            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2  ||
1591            phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC ||
1592            phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2 ||
1593            phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC ||
1594            phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2) {
1595                ethtool_link_ksettings_add_link_mode(ks, supported,
1596                                                     100000baseCR4_Full);
1597                if (!hw_link_info->req_speeds ||
1598                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1599                        need_add_adv_mode = true;
1600        }
1601        if (need_add_adv_mode) {
1602                need_add_adv_mode = false;
1603                ethtool_link_ksettings_add_link_mode(ks, advertising,
1604                                                     100000baseCR4_Full);
1605        }
1606        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR4 ||
1607            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR2) {
1608                ethtool_link_ksettings_add_link_mode(ks, supported,
1609                                                     100000baseSR4_Full);
1610                if (!hw_link_info->req_speeds ||
1611                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1612                        need_add_adv_mode = true;
1613        }
1614        if (need_add_adv_mode) {
1615                need_add_adv_mode = false;
1616                ethtool_link_ksettings_add_link_mode(ks, advertising,
1617                                                     100000baseSR4_Full);
1618        }
1619        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_LR4 ||
1620            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_DR) {
1621                ethtool_link_ksettings_add_link_mode(ks, supported,
1622                                                     100000baseLR4_ER4_Full);
1623                if (!hw_link_info->req_speeds ||
1624                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1625                        need_add_adv_mode = true;
1626        }
1627        if (need_add_adv_mode) {
1628                need_add_adv_mode = false;
1629                ethtool_link_ksettings_add_link_mode(ks, advertising,
1630                                                     100000baseLR4_ER4_Full);
1631        }
1632        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1633            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1634            phy_types_high & ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4) {
1635                ethtool_link_ksettings_add_link_mode(ks, supported,
1636                                                     100000baseKR4_Full);
1637                if (!hw_link_info->req_speeds ||
1638                    hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1639                        need_add_adv_mode = true;
1640        }
1641        if (need_add_adv_mode)
1642                ethtool_link_ksettings_add_link_mode(ks, advertising,
1643                                                     100000baseKR4_Full);
1644
1645        /* Autoneg PHY types */
1646        if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1647            phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1648            phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
1649            phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
1650            phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
1651            phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1652            phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
1653            phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1654            phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
1655            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1656            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1657            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1658            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1659            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1660            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1661            phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
1662            phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1663            phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1664                ethtool_link_ksettings_add_link_mode(ks, supported,
1665                                                     Autoneg);
1666                ethtool_link_ksettings_add_link_mode(ks, advertising,
1667                                                     Autoneg);
1668        }
1669        if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1670            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1671            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1672            phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1673                ethtool_link_ksettings_add_link_mode(ks, supported,
1674                                                     Autoneg);
1675                ethtool_link_ksettings_add_link_mode(ks, advertising,
1676                                                     Autoneg);
1677        }
1678        if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1679            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1680            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1681            phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) {
1682                ethtool_link_ksettings_add_link_mode(ks, supported,
1683                                                     Autoneg);
1684                ethtool_link_ksettings_add_link_mode(ks, advertising,
1685                                                     Autoneg);
1686        }
1687}
1688
1689#define TEST_SET_BITS_TIMEOUT   50
1690#define TEST_SET_BITS_SLEEP_MAX 2000
1691#define TEST_SET_BITS_SLEEP_MIN 1000
1692
1693/**
1694 * ice_get_settings_link_up - Get Link settings for when link is up
1695 * @ks: ethtool ksettings to fill in
1696 * @netdev: network interface device structure
1697 */
1698static void
1699ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1700                         struct net_device *netdev)
1701{
1702        struct ice_netdev_priv *np = netdev_priv(netdev);
1703        struct ice_port_info *pi = np->vsi->port_info;
1704        struct ethtool_link_ksettings cap_ksettings;
1705        struct ice_link_status *link_info;
1706        struct ice_vsi *vsi = np->vsi;
1707        bool unrecog_phy_high = false;
1708        bool unrecog_phy_low = false;
1709
1710        link_info = &vsi->port_info->phy.link_info;
1711
1712        /* Initialize supported and advertised settings based on PHY settings */
1713        switch (link_info->phy_type_low) {
1714        case ICE_PHY_TYPE_LOW_100BASE_TX:
1715                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1716                ethtool_link_ksettings_add_link_mode(ks, supported,
1717                                                     100baseT_Full);
1718                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1719                ethtool_link_ksettings_add_link_mode(ks, advertising,
1720                                                     100baseT_Full);
1721                break;
1722        case ICE_PHY_TYPE_LOW_100M_SGMII:
1723                ethtool_link_ksettings_add_link_mode(ks, supported,
1724                                                     100baseT_Full);
1725                break;
1726        case ICE_PHY_TYPE_LOW_1000BASE_T:
1727                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1728                ethtool_link_ksettings_add_link_mode(ks, supported,
1729                                                     1000baseT_Full);
1730                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1731                ethtool_link_ksettings_add_link_mode(ks, advertising,
1732                                                     1000baseT_Full);
1733                break;
1734        case ICE_PHY_TYPE_LOW_1G_SGMII:
1735                ethtool_link_ksettings_add_link_mode(ks, supported,
1736                                                     1000baseT_Full);
1737                break;
1738        case ICE_PHY_TYPE_LOW_1000BASE_SX:
1739        case ICE_PHY_TYPE_LOW_1000BASE_LX:
1740                ethtool_link_ksettings_add_link_mode(ks, supported,
1741                                                     1000baseX_Full);
1742                break;
1743        case ICE_PHY_TYPE_LOW_1000BASE_KX:
1744                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1745                ethtool_link_ksettings_add_link_mode(ks, supported,
1746                                                     1000baseKX_Full);
1747                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1748                ethtool_link_ksettings_add_link_mode(ks, advertising,
1749                                                     1000baseKX_Full);
1750                break;
1751        case ICE_PHY_TYPE_LOW_2500BASE_T:
1752                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1753                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1754                ethtool_link_ksettings_add_link_mode(ks, supported,
1755                                                     2500baseT_Full);
1756                ethtool_link_ksettings_add_link_mode(ks, advertising,
1757                                                     2500baseT_Full);
1758                break;
1759        case ICE_PHY_TYPE_LOW_2500BASE_X:
1760                ethtool_link_ksettings_add_link_mode(ks, supported,
1761                                                     2500baseX_Full);
1762                break;
1763        case ICE_PHY_TYPE_LOW_2500BASE_KX:
1764                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1765                ethtool_link_ksettings_add_link_mode(ks, supported,
1766                                                     2500baseX_Full);
1767                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1768                ethtool_link_ksettings_add_link_mode(ks, advertising,
1769                                                     2500baseX_Full);
1770                break;
1771        case ICE_PHY_TYPE_LOW_5GBASE_T:
1772        case ICE_PHY_TYPE_LOW_5GBASE_KR:
1773                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1774                ethtool_link_ksettings_add_link_mode(ks, supported,
1775                                                     5000baseT_Full);
1776                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1777                ethtool_link_ksettings_add_link_mode(ks, advertising,
1778                                                     5000baseT_Full);
1779                break;
1780        case ICE_PHY_TYPE_LOW_10GBASE_T:
1781                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1782                ethtool_link_ksettings_add_link_mode(ks, supported,
1783                                                     10000baseT_Full);
1784                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1785                ethtool_link_ksettings_add_link_mode(ks, advertising,
1786                                                     10000baseT_Full);
1787                break;
1788        case ICE_PHY_TYPE_LOW_10G_SFI_DA:
1789        case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
1790        case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
1791                ethtool_link_ksettings_add_link_mode(ks, supported,
1792                                                     10000baseT_Full);
1793                break;
1794        case ICE_PHY_TYPE_LOW_10GBASE_SR:
1795                ethtool_link_ksettings_add_link_mode(ks, supported,
1796                                                     10000baseSR_Full);
1797                break;
1798        case ICE_PHY_TYPE_LOW_10GBASE_LR:
1799                ethtool_link_ksettings_add_link_mode(ks, supported,
1800                                                     10000baseLR_Full);
1801                break;
1802        case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
1803                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1804                ethtool_link_ksettings_add_link_mode(ks, supported,
1805                                                     10000baseKR_Full);
1806                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1807                ethtool_link_ksettings_add_link_mode(ks, advertising,
1808                                                     10000baseKR_Full);
1809                break;
1810        case ICE_PHY_TYPE_LOW_25GBASE_T:
1811        case ICE_PHY_TYPE_LOW_25GBASE_CR:
1812        case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
1813        case ICE_PHY_TYPE_LOW_25GBASE_CR1:
1814                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1815                ethtool_link_ksettings_add_link_mode(ks, supported,
1816                                                     25000baseCR_Full);
1817                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1818                ethtool_link_ksettings_add_link_mode(ks, advertising,
1819                                                     25000baseCR_Full);
1820                break;
1821        case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
1822        case ICE_PHY_TYPE_LOW_25G_AUI_C2C:
1823                ethtool_link_ksettings_add_link_mode(ks, supported,
1824                                                     25000baseCR_Full);
1825                break;
1826        case ICE_PHY_TYPE_LOW_25GBASE_SR:
1827        case ICE_PHY_TYPE_LOW_25GBASE_LR:
1828                ethtool_link_ksettings_add_link_mode(ks, supported,
1829                                                     25000baseSR_Full);
1830                break;
1831        case ICE_PHY_TYPE_LOW_25GBASE_KR:
1832        case ICE_PHY_TYPE_LOW_25GBASE_KR1:
1833        case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
1834                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1835                ethtool_link_ksettings_add_link_mode(ks, supported,
1836                                                     25000baseKR_Full);
1837                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1838                ethtool_link_ksettings_add_link_mode(ks, advertising,
1839                                                     25000baseKR_Full);
1840                break;
1841        case ICE_PHY_TYPE_LOW_40GBASE_CR4:
1842                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1843                ethtool_link_ksettings_add_link_mode(ks, supported,
1844                                                     40000baseCR4_Full);
1845                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1846                ethtool_link_ksettings_add_link_mode(ks, advertising,
1847                                                     40000baseCR4_Full);
1848                break;
1849        case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
1850        case ICE_PHY_TYPE_LOW_40G_XLAUI:
1851                ethtool_link_ksettings_add_link_mode(ks, supported,
1852                                                     40000baseCR4_Full);
1853                break;
1854        case ICE_PHY_TYPE_LOW_40GBASE_SR4:
1855                ethtool_link_ksettings_add_link_mode(ks, supported,
1856                                                     40000baseSR4_Full);
1857                break;
1858        case ICE_PHY_TYPE_LOW_40GBASE_LR4:
1859                ethtool_link_ksettings_add_link_mode(ks, supported,
1860                                                     40000baseLR4_Full);
1861                break;
1862        case ICE_PHY_TYPE_LOW_40GBASE_KR4:
1863                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1864                ethtool_link_ksettings_add_link_mode(ks, supported,
1865                                                     40000baseKR4_Full);
1866                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1867                ethtool_link_ksettings_add_link_mode(ks, advertising,
1868                                                     40000baseKR4_Full);
1869                break;
1870        case ICE_PHY_TYPE_LOW_50GBASE_CR2:
1871        case ICE_PHY_TYPE_LOW_50GBASE_CP:
1872                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1873                ethtool_link_ksettings_add_link_mode(ks, supported,
1874                                                     50000baseCR2_Full);
1875                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1876                ethtool_link_ksettings_add_link_mode(ks, advertising,
1877                                                     50000baseCR2_Full);
1878                break;
1879        case ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC:
1880        case ICE_PHY_TYPE_LOW_50G_LAUI2:
1881        case ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC:
1882        case ICE_PHY_TYPE_LOW_50G_AUI2:
1883        case ICE_PHY_TYPE_LOW_50GBASE_SR:
1884        case ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC:
1885        case ICE_PHY_TYPE_LOW_50G_AUI1:
1886                ethtool_link_ksettings_add_link_mode(ks, supported,
1887                                                     50000baseCR2_Full);
1888                break;
1889        case ICE_PHY_TYPE_LOW_50GBASE_KR2:
1890        case ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4:
1891                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1892                ethtool_link_ksettings_add_link_mode(ks, supported,
1893                                                     50000baseKR2_Full);
1894                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1895                ethtool_link_ksettings_add_link_mode(ks, advertising,
1896                                                     50000baseKR2_Full);
1897                break;
1898        case ICE_PHY_TYPE_LOW_50GBASE_SR2:
1899        case ICE_PHY_TYPE_LOW_50GBASE_LR2:
1900        case ICE_PHY_TYPE_LOW_50GBASE_FR:
1901        case ICE_PHY_TYPE_LOW_50GBASE_LR:
1902                ethtool_link_ksettings_add_link_mode(ks, supported,
1903                                                     50000baseSR2_Full);
1904                break;
1905        case ICE_PHY_TYPE_LOW_100GBASE_CR4:
1906                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1907                ethtool_link_ksettings_add_link_mode(ks, supported,
1908                                                     100000baseCR4_Full);
1909                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1910                ethtool_link_ksettings_add_link_mode(ks, advertising,
1911                                                     100000baseCR4_Full);
1912                break;
1913        case ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC:
1914        case ICE_PHY_TYPE_LOW_100G_CAUI4:
1915        case ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC:
1916        case ICE_PHY_TYPE_LOW_100G_AUI4:
1917        case ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4:
1918                ethtool_link_ksettings_add_link_mode(ks, supported,
1919                                                     100000baseCR4_Full);
1920                break;
1921        case ICE_PHY_TYPE_LOW_100GBASE_CP2:
1922                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1923                ethtool_link_ksettings_add_link_mode(ks, supported,
1924                                                     100000baseCR4_Full);
1925                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1926                ethtool_link_ksettings_add_link_mode(ks, advertising,
1927                                                     100000baseCR4_Full);
1928                break;
1929        case ICE_PHY_TYPE_LOW_100GBASE_SR4:
1930        case ICE_PHY_TYPE_LOW_100GBASE_SR2:
1931                ethtool_link_ksettings_add_link_mode(ks, supported,
1932                                                     100000baseSR4_Full);
1933                break;
1934        case ICE_PHY_TYPE_LOW_100GBASE_LR4:
1935        case ICE_PHY_TYPE_LOW_100GBASE_DR:
1936                ethtool_link_ksettings_add_link_mode(ks, supported,
1937                                                     100000baseLR4_ER4_Full);
1938                break;
1939        case ICE_PHY_TYPE_LOW_100GBASE_KR4:
1940        case ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4:
1941                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1942                ethtool_link_ksettings_add_link_mode(ks, supported,
1943                                                     100000baseKR4_Full);
1944                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1945                ethtool_link_ksettings_add_link_mode(ks, advertising,
1946                                                     100000baseKR4_Full);
1947                break;
1948        default:
1949                unrecog_phy_low = true;
1950        }
1951
1952        switch (link_info->phy_type_high) {
1953        case ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4:
1954                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1955                ethtool_link_ksettings_add_link_mode(ks, supported,
1956                                                     100000baseKR4_Full);
1957                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1958                ethtool_link_ksettings_add_link_mode(ks, advertising,
1959                                                     100000baseKR4_Full);
1960                break;
1961        case ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC:
1962        case ICE_PHY_TYPE_HIGH_100G_CAUI2:
1963        case ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC:
1964        case ICE_PHY_TYPE_HIGH_100G_AUI2:
1965                ethtool_link_ksettings_add_link_mode(ks, supported,
1966                                                     100000baseCR4_Full);
1967                break;
1968        default:
1969                unrecog_phy_high = true;
1970        }
1971
1972        if (unrecog_phy_low && unrecog_phy_high) {
1973                /* if we got here and link is up something bad is afoot */
1974                netdev_info(netdev,
1975                            "WARNING: Unrecognized PHY_Low (0x%llx).\n",
1976                            (u64)link_info->phy_type_low);
1977                netdev_info(netdev,
1978                            "WARNING: Unrecognized PHY_High (0x%llx).\n",
1979                            (u64)link_info->phy_type_high);
1980        }
1981
1982        /* Now that we've worked out everything that could be supported by the
1983         * current PHY type, get what is supported by the NVM and intersect
1984         * them to get what is truly supported
1985         */
1986        memset(&cap_ksettings, 0, sizeof(cap_ksettings));
1987        ice_phy_type_to_ethtool(netdev, &cap_ksettings);
1988        ethtool_intersect_link_masks(ks, &cap_ksettings);
1989
1990        switch (link_info->link_speed) {
1991        case ICE_AQ_LINK_SPEED_100GB:
1992                ks->base.speed = SPEED_100000;
1993                break;
1994        case ICE_AQ_LINK_SPEED_50GB:
1995                ks->base.speed = SPEED_50000;
1996                break;
1997        case ICE_AQ_LINK_SPEED_40GB:
1998                ks->base.speed = SPEED_40000;
1999                break;
2000        case ICE_AQ_LINK_SPEED_25GB:

2001                ks->base.speed = SPEED_25000;
2002                break;
2003        case ICE_AQ_LINK_SPEED_20GB:
2004                ks->base.speed = SPEED_20000;
2005                break;
2006        case ICE_AQ_LINK_SPEED_10GB:
2007                ks->base.speed = SPEED_10000;
2008                break;
2009        case ICE_AQ_LINK_SPEED_5GB:
2010                ks->base.speed = SPEED_5000;
2011                break;
2012        case ICE_AQ_LINK_SPEED_2500MB:
2013                ks->base.speed = SPEED_2500;
2014                break;
2015        case ICE_AQ_LINK_SPEED_1000MB:
2016                ks->base.speed = SPEED_1000;
2017                break;
2018        case ICE_AQ_LINK_SPEED_100MB:
2019                ks->base.speed = SPEED_100;
2020                break;
2021        default:
2022                netdev_info(netdev,
2023                            "WARNING: Unrecognized link_speed (0x%x).\n",
2024                            link_info->link_speed);
2025                break;
2026        }
2027        ks->base.duplex = DUPLEX_FULL;
2028
2029        if (link_info->an_info & ICE_AQ_AN_COMPLETED)
2030                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2031                                                     Autoneg);
2032
2033        /* Set flow control negotiated Rx/Tx pause */
2034        switch (pi->fc.current_mode) {
2035        case ICE_FC_FULL:
2036                ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
2037                break;
2038        case ICE_FC_TX_PAUSE:
2039                ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
2040                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2041                                                     Asym_Pause);
2042                break;
2043        case ICE_FC_RX_PAUSE:
2044                ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2045                                                     Asym_Pause);
2046                break;
2047        case ICE_FC_PFC:
2048                /* fall through */
2049        default:
2050                ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
2051                ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
2052                                                     Asym_Pause);
2053                break;
2054        }
2055}
2056
2057/**
2058 * ice_get_settings_link_down - Get the Link settings when link is down
2059 * @ks: ethtool ksettings to fill in
2060 * @netdev: network interface device structure
2061 *
2062 * Reports link settings that can be determined when link is down
2063 */
2064static void
2065ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
2066                           struct net_device *netdev)
2067{
2068        /* link is down and the driver needs to fall back on
2069         * supported PHY types to figure out what info to display
2070         */
2071        ice_phy_type_to_ethtool(netdev, ks);
2072
2073        /* With no link, speed and duplex are unknown */
2074        ks->base.speed = SPEED_UNKNOWN;
2075        ks->base.duplex = DUPLEX_UNKNOWN;
2076}
2077
2078/**
2079 * ice_get_link_ksettings - Get Link Speed and Duplex settings
2080 * @netdev: network interface device structure
2081 * @ks: ethtool ksettings
2082 *
2083 * Reports speed/duplex settings based on media_type
2084 */
2085static int
2086ice_get_link_ksettings(struct net_device *netdev,
2087                       struct ethtool_link_ksettings *ks)
2088{
2089        struct ice_netdev_priv *np = netdev_priv(netdev);
2090        struct ice_aqc_get_phy_caps_data *caps;
2091        struct ice_link_status *hw_link_info;
2092        struct ice_vsi *vsi = np->vsi;
2093        enum ice_status status;
2094        int err = 0;
2095
2096        ethtool_link_ksettings_zero_link_mode(ks, supported);
2097        ethtool_link_ksettings_zero_link_mode(ks, advertising);
2098        ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
2099        hw_link_info = &vsi->port_info->phy.link_info;
2100
2101        /* set speed and duplex */
2102        if (hw_link_info->link_info & ICE_AQ_LINK_UP)
2103                ice_get_settings_link_up(ks, netdev);
2104        else
2105                ice_get_settings_link_down(ks, netdev);
2106
2107        /* set autoneg settings */
2108        ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
2109                AUTONEG_ENABLE : AUTONEG_DISABLE;
2110
2111        /* set media type settings */
2112        switch (vsi->port_info->phy.media_type) {
2113        case ICE_MEDIA_FIBER:
2114                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
2115                ks->base.port = PORT_FIBRE;
2116                break;
2117        case ICE_MEDIA_BASET:
2118                ethtool_link_ksettings_add_link_mode(ks, supported, TP);
2119                ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
2120                ks->base.port = PORT_TP;
2121                break;
2122        case ICE_MEDIA_BACKPLANE:
2123                ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
2124                ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
2125                ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
2126                ethtool_link_ksettings_add_link_mode(ks, advertising,
2127                                                     Backplane);
2128                ks->base.port = PORT_NONE;
2129                break;
2130        case ICE_MEDIA_DA:
2131                ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
2132                ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
2133                ks->base.port = PORT_DA;
2134                break;
2135        default:
2136                ks->base.port = PORT_OTHER;
2137                break;
2138        }
2139
2140        /* flow control is symmetric and always supported */
2141        ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
2142
2143        caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
2144        if (!caps)
2145                return -ENOMEM;
2146
2147        status = ice_aq_get_phy_caps(vsi->port_info, false,
2148                                     ICE_AQC_REPORT_SW_CFG, caps, NULL);
2149        if (status) {
2150                err = -EIO;
2151                goto done;
2152        }
2153
2154        /* Set the advertised flow control based on the PHY capability */
2155        if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
2156            (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
2157                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2158                ethtool_link_ksettings_add_link_mode(ks, advertising,
2159                                                     Asym_Pause);
2160        } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
2161                ethtool_link_ksettings_add_link_mode(ks, advertising,
2162                                                     Asym_Pause);
2163        } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
2164                ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2165                ethtool_link_ksettings_add_link_mode(ks, advertising,
2166                                                     Asym_Pause);
2167        } else {
2168                ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
2169                ethtool_link_ksettings_del_link_mode(ks, advertising,
2170                                                     Asym_Pause);
2171        }
2172
2173        /* Set advertised FEC modes based on PHY capability */
2174        ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
2175
2176        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
2177            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
2178                ethtool_link_ksettings_add_link_mode(ks, advertising,
2179                                                     FEC_BASER);
2180        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
2181            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
2182                ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
2183
2184        status = ice_aq_get_phy_caps(vsi->port_info, false,
2185                                     ICE_AQC_REPORT_TOPO_CAP, caps, NULL);
2186        if (status) {
2187                err = -EIO;
2188                goto done;
2189        }
2190
2191        /* Set supported FEC modes based on PHY capability */
2192        ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
2193
2194        if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
2195            caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
2196                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
2197        if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
2198                ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
2199
2200done:
2201        devm_kfree(&vsi->back->pdev->dev, caps);
2202        return err;
2203}
2204
2205/**
2206 * ice_ksettings_find_adv_link_speed - Find advertising link speed
2207 * @ks: ethtool ksettings
2208 */
2209static u16
2210ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
2211{
2212        u16 adv_link_speed = 0;
2213
2214        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2215                                                  100baseT_Full))
2216                adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
2217        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2218                                                  1000baseX_Full))
2219                adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2220        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2221                                                  1000baseT_Full) ||
2222            ethtool_link_ksettings_test_link_mode(ks, advertising,
2223                                                  1000baseKX_Full))
2224                adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2225        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2226                                                  2500baseT_Full))
2227                adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2228        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2229                                                  2500baseX_Full))
2230                adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2231        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2232                                                  5000baseT_Full))
2233                adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2234        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2235                                                  10000baseT_Full) ||
2236            ethtool_link_ksettings_test_link_mode(ks, advertising,
2237                                                  10000baseKR_Full))
2238                adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2239        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2240                                                  10000baseSR_Full) ||
2241            ethtool_link_ksettings_test_link_mode(ks, advertising,
2242                                                  10000baseLR_Full))
2243                adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2244        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2245                                                  25000baseCR_Full) ||
2246            ethtool_link_ksettings_test_link_mode(ks, advertising,
2247                                                  25000baseSR_Full) ||
2248            ethtool_link_ksettings_test_link_mode(ks, advertising,
2249                                                  25000baseKR_Full))
2250                adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2251        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2252                                                  40000baseCR4_Full) ||
2253            ethtool_link_ksettings_test_link_mode(ks, advertising,
2254                                                  40000baseSR4_Full) ||
2255            ethtool_link_ksettings_test_link_mode(ks, advertising,
2256                                                  40000baseLR4_Full) ||
2257            ethtool_link_ksettings_test_link_mode(ks, advertising,
2258                                                  40000baseKR4_Full))
2259                adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2260        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2261                                                  50000baseCR2_Full) ||
2262            ethtool_link_ksettings_test_link_mode(ks, advertising,
2263                                                  50000baseKR2_Full))
2264                adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2265        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2266                                                  50000baseSR2_Full))
2267                adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2268        if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2269                                                  100000baseCR4_Full) ||
2270            ethtool_link_ksettings_test_link_mode(ks, advertising,
2271                                                  100000baseSR4_Full) ||
2272            ethtool_link_ksettings_test_link_mode(ks, advertising,
2273                                                  100000baseLR4_ER4_Full) ||
2274            ethtool_link_ksettings_test_link_mode(ks, advertising,
2275                                                  100000baseKR4_Full))
2276                adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2277
2278        return adv_link_speed;
2279}
2280
2281/**
2282 * ice_setup_autoneg
2283 * @p: port info
2284 * @ks: ethtool_link_ksettings
2285 * @config: configuration that will be sent down to FW
2286 * @autoneg_enabled: autonegotiation is enabled or not
2287 * @autoneg_changed: will there a change in autonegotiation
2288 * @netdev: network interface device structure
2289 *
2290 * Setup PHY autonegotiation feature
2291 */
2292static int
2293ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2294                  struct ice_aqc_set_phy_cfg_data *config,
2295                  u8 autoneg_enabled, u8 *autoneg_changed,
2296                  struct net_device *netdev)
2297{
2298        int err = 0;
2299
2300        *autoneg_changed = 0;
2301
2302        /* Check autoneg */
2303        if (autoneg_enabled == AUTONEG_ENABLE) {
2304                /* If autoneg was not already enabled */
2305                if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2306                        /* If autoneg is not supported, return error */
2307                        if (!ethtool_link_ksettings_test_link_mode(ks,
2308                                                                   supported,
2309                                                                   Autoneg)) {
2310                                netdev_info(netdev, "Autoneg not supported on this phy.\n");
2311                                err = -EINVAL;
2312                        } else {
2313                                /* Autoneg is allowed to change */
2314                                config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2315                                *autoneg_changed = 1;
2316                        }
2317                }
2318        } else {
2319                /* If autoneg is currently enabled */
2320                if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2321                        /* If autoneg is supported 10GBASE_T is the only PHY
2322                         * that can disable it, so otherwise return error
2323                         */
2324                        if (ethtool_link_ksettings_test_link_mode(ks,
2325                                                                  supported,
2326                                                                  Autoneg)) {
2327                                netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2328                                err = -EINVAL;
2329                        } else {
2330                                /* Autoneg is allowed to change */
2331                                config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2332                                *autoneg_changed = 1;
2333                        }
2334                }
2335        }
2336
2337        return err;
2338}
2339
2340/**
2341 * ice_set_link_ksettings - Set Speed and Duplex
2342 * @netdev: network interface device structure
2343 * @ks: ethtool ksettings
2344 *
2345 * Set speed/duplex per media_types advertised/forced
2346 */
2347static int
2348ice_set_link_ksettings(struct net_device *netdev,
2349                       const struct ethtool_link_ksettings *ks)
2350{
2351        u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0;
2352        struct ice_netdev_priv *np = netdev_priv(netdev);
2353        struct ethtool_link_ksettings safe_ks, copy_ks;
2354        struct ice_aqc_get_phy_caps_data *abilities;
2355        u16 adv_link_speed, curr_link_speed, idx;
2356        struct ice_aqc_set_phy_cfg_data config;
2357        struct ice_pf *pf = np->vsi->back;
2358        struct ice_port_info *p;
2359        u8 autoneg_changed = 0;
2360        enum ice_status status;
2361        u64 phy_type_high;
2362        u64 phy_type_low;
2363        int err = 0;
2364        bool linkup;
2365
2366        p = np->vsi->port_info;
2367
2368        if (!p)
2369                return -EOPNOTSUPP;
2370
2371        /* Check if this is LAN VSI */
2372        ice_for_each_vsi(pf, idx)
2373                if (pf->vsi[idx]->type == ICE_VSI_PF) {
2374                        if (np->vsi != pf->vsi[idx])
2375                                return -EOPNOTSUPP;
2376                        break;
2377                }
2378
2379        if (p->phy.media_type != ICE_MEDIA_BASET &&
2380            p->phy.media_type != ICE_MEDIA_FIBER &&
2381            p->phy.media_type != ICE_MEDIA_BACKPLANE &&
2382            p->phy.media_type != ICE_MEDIA_DA &&
2383            p->phy.link_info.link_info & ICE_AQ_LINK_UP)
2384                return -EOPNOTSUPP;
2385
2386        /* copy the ksettings to copy_ks to avoid modifying the original */
2387        memcpy(&copy_ks, ks, sizeof(copy_ks));
2388
2389        /* save autoneg out of ksettings */
2390        autoneg = copy_ks.base.autoneg;
2391
2392        memset(&safe_ks, 0, sizeof(safe_ks));
2393
2394        /* Get link modes supported by hardware.*/
2395        ice_phy_type_to_ethtool(netdev, &safe_ks);
2396
2397        /* and check against modes requested by user.
2398         * Return an error if unsupported mode was set.
2399         */
2400        if (!bitmap_subset(copy_ks.link_modes.advertising,
2401                           safe_ks.link_modes.supported,
2402                           __ETHTOOL_LINK_MODE_MASK_NBITS))
2403                return -EINVAL;
2404
2405        /* get our own copy of the bits to check against */
2406        memset(&safe_ks, 0, sizeof(safe_ks));
2407        safe_ks.base.cmd = copy_ks.base.cmd;
2408        safe_ks.base.link_mode_masks_nwords =
2409                copy_ks.base.link_mode_masks_nwords;
2410        ice_get_link_ksettings(netdev, &safe_ks);
2411
2412        /* set autoneg back to what it currently is */
2413        copy_ks.base.autoneg = safe_ks.base.autoneg;
2414        /* we don't compare the speed */
2415        copy_ks.base.speed = safe_ks.base.speed;
2416
2417        /* If copy_ks.base and safe_ks.base are not the same now, then they are
2418         * trying to set something that we do not support.
2419         */
2420        if (memcmp(&copy_ks.base, &safe_ks.base, sizeof(copy_ks.base)))
2421                return -EOPNOTSUPP;
2422
2423        while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2424                timeout--;
2425                if (!timeout)
2426                        return -EBUSY;
2427                usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2428        }
2429
2430        abilities = devm_kzalloc(&pf->pdev->dev, sizeof(*abilities),
2431                                 GFP_KERNEL);
2432        if (!abilities)
2433                return -ENOMEM;
2434
2435        /* Get the current PHY config */
2436        status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities,
2437                                     NULL);
2438        if (status) {
2439                err = -EAGAIN;
2440                goto done;
2441        }
2442
2443        /* Copy abilities to config in case autoneg is not set below */
2444        memset(&config, 0, sizeof(config));
2445        config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
2446        if (abilities->caps & ICE_AQC_PHY_AN_MODE)
2447                config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2448
2449        /* Check autoneg */
2450        err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
2451                                netdev);
2452
2453        if (err)
2454                goto done;
2455
2456        /* Call to get the current link speed */
2457        p->phy.get_link_info = true;
2458        status = ice_get_link_status(p, &linkup);
2459        if (status) {
2460                err = -EAGAIN;
2461                goto done;
2462        }
2463
2464        curr_link_speed = p->phy.link_info.link_speed;
2465        adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2466
2467        /* If speed didn't get set, set it to what it currently is.
2468         * This is needed because if advertise is 0 (as it is when autoneg
2469         * is disabled) then speed won't get set.
2470         */
2471        if (!adv_link_speed)
2472                adv_link_speed = curr_link_speed;
2473
2474        /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2475        ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);
2476
2477        if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2478                netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2479                goto done;
2480        }
2481
2482        /* copy over the rest of the abilities */
2483        config.low_power_ctrl = abilities->low_power_ctrl;
2484        config.eee_cap = abilities->eee_cap;
2485        config.eeer_value = abilities->eeer_value;
2486        config.link_fec_opt = abilities->link_fec_options;
2487
2488        /* save the requested speeds */
2489        p->phy.link_info.req_speeds = adv_link_speed;
2490
2491        /* set link and auto negotiation so changes take effect */
2492        config.caps |= ICE_AQ_PHY_ENA_LINK;
2493
2494        if (phy_type_low || phy_type_high) {
2495                config.phy_type_high = cpu_to_le64(phy_type_high) &
2496                        abilities->phy_type_high;
2497                config.phy_type_low = cpu_to_le64(phy_type_low) &
2498                        abilities->phy_type_low;
2499        } else {
2500                err = -EAGAIN;
2501                netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n");
2502                goto done;
2503        }
2504
2505        /* If link is up put link down */
2506        if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2507                /* Tell the OS link is going down, the link will go
2508                 * back up when fw says it is ready asynchronously
2509                 */
2510                ice_print_link_msg(np->vsi, false);
2511                netif_carrier_off(netdev);
2512                netif_tx_stop_all_queues(netdev);
2513        }
2514
2515        /* make the aq call */
2516        status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL);
2517        if (status) {
2518                netdev_info(netdev, "Set phy config failed,\n");
2519                err = -EAGAIN;
2520        }
2521
2522done:
2523        devm_kfree(&pf->pdev->dev, abilities);
2524        clear_bit(__ICE_CFG_BUSY, pf->state);
2525
2526        return err;
2527}
2528
2529/**
2530 * ice_get_rxnfc - command to get Rx flow classification rules
2531 * @netdev: network interface device structure
2532 * @cmd: ethtool rxnfc command
2533 * @rule_locs: buffer to rturn Rx flow classification rules
2534 *
2535 * Returns Success if the command is supported.
2536 */
2537static int
2538ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2539              u32 __always_unused *rule_locs)
2540{
2541        struct ice_netdev_priv *np = netdev_priv(netdev);
2542        struct ice_vsi *vsi = np->vsi;
2543        int ret = -EOPNOTSUPP;
2544
2545        switch (cmd->cmd) {
2546        case ETHTOOL_GRXRINGS:
2547                cmd->data = vsi->rss_size;
2548                ret = 0;
2549                break;
2550        default:
2551                break;
2552        }
2553
2554        return ret;
2555}
2556
2557static void
2558ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2559{
2560        struct ice_netdev_priv *np = netdev_priv(netdev);
2561        struct ice_vsi *vsi = np->vsi;
2562
2563        ring->rx_max_pending = ICE_MAX_NUM_DESC;
2564        ring->tx_max_pending = ICE_MAX_NUM_DESC;
2565        ring->rx_pending = vsi->rx_rings[0]->count;
2566        ring->tx_pending = vsi->tx_rings[0]->count;
2567
2568        /* Rx mini and jumbo rings are not supported */
2569        ring->rx_mini_max_pending = 0;
2570        ring->rx_jumbo_max_pending = 0;
2571        ring->rx_mini_pending = 0;
2572        ring->rx_jumbo_pending = 0;
2573}
2574
2575static int
2576ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2577{
2578        struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
2579        struct ice_netdev_priv *np = netdev_priv(netdev);
2580        struct ice_vsi *vsi = np->vsi;
2581        struct ice_pf *pf = vsi->back;
2582        int i, timeout = 50, err = 0;
2583        u32 new_rx_cnt, new_tx_cnt;
2584
2585        if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2586            ring->tx_pending < ICE_MIN_NUM_DESC ||
2587            ring->rx_pending > ICE_MAX_NUM_DESC ||
2588            ring->rx_pending < ICE_MIN_NUM_DESC) {
2589                netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2590                           ring->tx_pending, ring->rx_pending,
2591                           ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2592                           ICE_REQ_DESC_MULTIPLE);
2593                return -EINVAL;
2594        }
2595
2596        new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2597        if (new_tx_cnt != ring->tx_pending)
2598                netdev_info(netdev,
2599                            "Requested Tx descriptor count rounded up to %d\n",
2600                            new_tx_cnt);
2601        new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2602        if (new_rx_cnt != ring->rx_pending)
2603                netdev_info(netdev,
2604                            "Requested Rx descriptor count rounded up to %d\n",
2605                            new_rx_cnt);
2606
2607        /* if nothing to do return success */
2608        if (new_tx_cnt == vsi->tx_rings[0]->count &&
2609            new_rx_cnt == vsi->rx_rings[0]->count) {
2610                netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2611                return 0;
2612        }
2613
2614        while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2615                timeout--;
2616                if (!timeout)
2617                        return -EBUSY;
2618                usleep_range(1000, 2000);
2619        }
2620
2621        /* set for the next time the netdev is started */
2622        if (!netif_running(vsi->netdev)) {
2623                for (i = 0; i < vsi->alloc_txq; i++)
2624                        vsi->tx_rings[i]->count = new_tx_cnt;
2625                for (i = 0; i < vsi->alloc_rxq; i++)
2626                        vsi->rx_rings[i]->count = new_rx_cnt;
2627                netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2628                goto done;
2629        }
2630
2631        if (new_tx_cnt == vsi->tx_rings[0]->count)
2632                goto process_rx;
2633
2634        /* alloc updated Tx resources */
2635        netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2636                    vsi->tx_rings[0]->count, new_tx_cnt);
2637
2638        tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
2639                                sizeof(*tx_rings), GFP_KERNEL);
2640        if (!tx_rings) {
2641                err = -ENOMEM;
2642                goto done;
2643        }
2644
2645        for (i = 0; i < vsi->alloc_txq; i++) {
2646                /* clone ring and setup updated count */
2647                tx_rings[i] = *vsi->tx_rings[i];
2648                tx_rings[i].count = new_tx_cnt;
2649                tx_rings[i].desc = NULL;
2650                tx_rings[i].tx_buf = NULL;
2651                err = ice_setup_tx_ring(&tx_rings[i]);
2652                if (err) {
2653                        while (i) {
2654                                i--;
2655                                ice_clean_tx_ring(&tx_rings[i]);
2656                        }
2657                        devm_kfree(&pf->pdev->dev, tx_rings);
2658                        goto done;
2659                }
2660        }
2661
2662process_rx:
2663        if (new_rx_cnt == vsi->rx_rings[0]->count)
2664                goto process_link;
2665
2666        /* alloc updated Rx resources */
2667        netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2668                    vsi->rx_rings[0]->count, new_rx_cnt);
2669
2670        rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
2671                                sizeof(*rx_rings), GFP_KERNEL);
2672        if (!rx_rings) {
2673                err = -ENOMEM;
2674                goto done;
2675        }
2676
2677        for (i = 0; i < vsi->alloc_rxq; i++) {
2678                /* clone ring and setup updated count */
2679                rx_rings[i] = *vsi->rx_rings[i];
2680                rx_rings[i].count = new_rx_cnt;
2681                rx_rings[i].desc = NULL;
2682                rx_rings[i].rx_buf = NULL;
2683                /* this is to allow wr32 to have something to write to
2684                 * during early allocation of Rx buffers
2685                 */
2686                rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2687
2688                err = ice_setup_rx_ring(&rx_rings[i]);
2689                if (err)
2690                        goto rx_unwind;
2691
2692                /* allocate Rx buffers */
2693                err = ice_alloc_rx_bufs(&rx_rings[i],
2694                                        ICE_DESC_UNUSED(&rx_rings[i]));
2695rx_unwind:
2696                if (err) {
2697                        while (i) {
2698                                i--;
2699                                ice_free_rx_ring(&rx_rings[i]);
2700                        }
2701                        devm_kfree(&pf->pdev->dev, rx_rings);
2702                        err = -ENOMEM;
2703                        goto free_tx;
2704                }
2705        }
2706
2707process_link:
2708        /* Bring interface down, copy in the new ring info, then restore the
2709         * interface. if VSI is up, bring it down and then back up
2710         */
2711        if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
2712                ice_down(vsi);
2713
2714                if (tx_rings) {
2715                        for (i = 0; i < vsi->alloc_txq; i++) {
2716                                ice_free_tx_ring(vsi->tx_rings[i]);
2717                                *vsi->tx_rings[i] = tx_rings[i];
2718                        }
2719                        devm_kfree(&pf->pdev->dev, tx_rings);
2720                }
2721
2722                if (rx_rings) {
2723                        for (i = 0; i < vsi->alloc_rxq; i++) {
2724                                ice_free_rx_ring(vsi->rx_rings[i]);
2725                                /* copy the real tail offset */
2726                                rx_rings[i].tail = vsi->rx_rings[i]->tail;
2727                                /* this is to fake out the allocation routine
2728                                 * into thinking it has to realloc everything
2729                                 * but the recycling logic will let us re-use
2730                                 * the buffers allocated above
2731                                 */
2732                                rx_rings[i].next_to_use = 0;
2733                                rx_rings[i].next_to_clean = 0;
2734                                rx_rings[i].next_to_alloc = 0;
2735                                *vsi->rx_rings[i] = rx_rings[i];
2736                        }
2737                        devm_kfree(&pf->pdev->dev, rx_rings);
2738                }
2739
2740                ice_up(vsi);
2741        }
2742        goto done;
2743
2744free_tx:
2745        /* error cleanup if the Rx allocations failed after getting Tx */
2746        if (tx_rings) {
2747                for (i = 0; i < vsi->alloc_txq; i++)
2748                        ice_free_tx_ring(&tx_rings[i]);
2749                devm_kfree(&pf->pdev->dev, tx_rings);
2750        }
2751
2752done:
2753        clear_bit(__ICE_CFG_BUSY, pf->state);
2754        return err;
2755}
2756
2757static int ice_nway_reset(struct net_device *netdev)
2758{
2759        /* restart autonegotiation */
2760        struct ice_netdev_priv *np = netdev_priv(netdev);
2761        struct ice_vsi *vsi = np->vsi;
2762        struct ice_port_info *pi;
2763        enum ice_status status;
2764
2765        pi = vsi->port_info;
2766        /* If VSI state is up, then restart autoneg with link up */
2767        if (!test_bit(__ICE_DOWN, vsi->back->state))
2768                status = ice_aq_set_link_restart_an(pi, true, NULL);
2769        else
2770                status = ice_aq_set_link_restart_an(pi, false, NULL);
2771
2772        if (status) {
2773                netdev_info(netdev, "link restart failed, err %d aq_err %d\n",
2774                            status, pi->hw->adminq.sq_last_status);
2775                return -EIO;
2776        }
2777
2778        return 0;
2779}
2780
2781/**
2782 * ice_get_pauseparam - Get Flow Control status
2783 * @netdev: network interface device structure
2784 * @pause: ethernet pause (flow control) parameters
2785 *
2786 * Get requested flow control status from PHY capability.
2787 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2788 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2789 * the negotiated Rx/Tx pause via lp_advertising.
2790 */
2791static void
2792ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2793{
2794        struct ice_netdev_priv *np = netdev_priv(netdev);
2795        struct ice_port_info *pi = np->vsi->port_info;
2796        struct ice_aqc_get_phy_caps_data *pcaps;
2797        struct ice_vsi *vsi = np->vsi;
2798        struct ice_dcbx_cfg *dcbx_cfg;
2799        enum ice_status status;
2800
2801        /* Initialize pause params */
2802        pause->rx_pause = 0;
2803        pause->tx_pause = 0;
2804
2805        dcbx_cfg = &pi->local_dcbx_cfg;
2806
2807        pcaps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*pcaps),
2808                             GFP_KERNEL);
2809        if (!pcaps)
2810                return;
2811
2812        /* Get current PHY config */
2813        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2814                                     NULL);
2815        if (status)
2816                goto out;
2817
2818        pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2819                        AUTONEG_ENABLE : AUTONEG_DISABLE);
2820
2821        if (dcbx_cfg->pfc.pfcena)
2822                /* PFC enabled so report LFC as off */
2823                goto out;
2824
2825        if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
2826                pause->tx_pause = 1;
2827        if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
2828                pause->rx_pause = 1;
2829
2830out:
2831        devm_kfree(&vsi->back->pdev->dev, pcaps);
2832}
2833
2834/**
2835 * ice_set_pauseparam - Set Flow Control parameter
2836 * @netdev: network interface device structure
2837 * @pause: return Tx/Rx flow control status
2838 */
2839static int
2840ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2841{
2842        struct ice_netdev_priv *np = netdev_priv(netdev);
2843        struct ice_aqc_get_phy_caps_data *pcaps;
2844        struct ice_link_status *hw_link_info;
2845        struct ice_pf *pf = np->vsi->back;
2846        struct ice_dcbx_cfg *dcbx_cfg;
2847        struct ice_vsi *vsi = np->vsi;
2848        struct ice_hw *hw = &pf->hw;
2849        struct ice_port_info *pi;
2850        enum ice_status status;
2851        u8 aq_failures;
2852        bool link_up;
2853        int err = 0;
2854        u32 is_an;
2855
2856        pi = vsi->port_info;
2857        hw_link_info = &pi->phy.link_info;
2858        dcbx_cfg = &pi->local_dcbx_cfg;
2859        link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
2860
2861        /* Changing the port's flow control is not supported if this isn't the
2862         * PF VSI
2863         */
2864        if (vsi->type != ICE_VSI_PF) {
2865                netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
2866                return -EOPNOTSUPP;
2867        }
2868
2869        /* Get pause param reports configured and negotiated flow control pause
2870         * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
2871         * defined get pause param pause->autoneg reports SW configured setting,
2872         * so compare pause->autoneg with SW configured to prevent the user from
2873         * using set pause param to chance autoneg.
2874         */
2875        pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2876        if (!pcaps)
2877                return -ENOMEM;
2878
2879        /* Get current PHY config */
2880        status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2881                                     NULL);
2882        if (status) {
2883                kfree(pcaps);
2884                return -EIO;
2885        }
2886
2887        is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2888                        AUTONEG_ENABLE : AUTONEG_DISABLE);
2889
2890        kfree(pcaps);
2891
2892        if (pause->autoneg != is_an) {
2893                netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
2894                return -EOPNOTSUPP;
2895        }
2896
2897        /* If we have link and don't have autoneg */
2898        if (!test_bit(__ICE_DOWN, pf->state) &&
2899            !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
2900                /* Send message that it might not necessarily work*/
2901                netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
2902        }
2903
2904        if (dcbx_cfg->pfc.pfcena) {
2905                netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
2906                return -EOPNOTSUPP;
2907        }
2908        if (pause->rx_pause && pause->tx_pause)
2909                pi->fc.req_mode = ICE_FC_FULL;
2910        else if (pause->rx_pause && !pause->tx_pause)
2911                pi->fc.req_mode = ICE_FC_RX_PAUSE;
2912        else if (!pause->rx_pause && pause->tx_pause)
2913                pi->fc.req_mode = ICE_FC_TX_PAUSE;
2914        else if (!pause->rx_pause && !pause->tx_pause)
2915                pi->fc.req_mode = ICE_FC_NONE;
2916        else
2917                return -EINVAL;
2918
2919        /* Tell the OS link is going down, the link will go back up when fw
2920         * says it is ready asynchronously
2921         */
2922        ice_print_link_msg(vsi, false);
2923        netif_carrier_off(netdev);
2924        netif_tx_stop_all_queues(netdev);
2925
2926        /* Set the FC mode and only restart AN if link is up */
2927        status = ice_set_fc(pi, &aq_failures, link_up);
2928
2929        if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
2930                netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n",
2931                            status, hw->adminq.sq_last_status);
2932                err = -EAGAIN;
2933        } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
2934                netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n",
2935                            status, hw->adminq.sq_last_status);
2936                err = -EAGAIN;
2937        } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
2938                netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n",
2939                            status, hw->adminq.sq_last_status);
2940                err = -EAGAIN;
2941        }
2942
2943        if (!test_bit(__ICE_DOWN, pf->state)) {
2944                /* Give it a little more time to try to come back. If still
2945                 * down, restart autoneg link or reinitialize the interface.
2946                 */
2947                msleep(75);
2948                if (!test_bit(__ICE_DOWN, pf->state))
2949                        return ice_nway_reset(netdev);
2950
2951                ice_down(vsi);
2952                ice_up(vsi);
2953        }
2954
2955        return err;
2956}
2957
2958/**
2959 * ice_get_rxfh_key_size - get the RSS hash key size
2960 * @netdev: network interface device structure
2961 *
2962 * Returns the table size.
2963 */
2964static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
2965{
2966        return ICE_VSIQF_HKEY_ARRAY_SIZE;
2967}
2968
2969/**
2970 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
2971 * @netdev: network interface device structure
2972 *
2973 * Returns the table size.
2974 */
2975static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
2976{
2977        struct ice_netdev_priv *np = netdev_priv(netdev);
2978
2979        return np->vsi->rss_table_size;
2980}
2981
2982/**
2983 * ice_get_rxfh - get the Rx flow hash indirection table
2984 * @netdev: network interface device structure
2985 * @indir: indirection table
2986 * @key: hash key
2987 * @hfunc: hash function
2988 *
2989 * Reads the indirection table directly from the hardware.
2990 */
2991static int
2992ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
2993{
2994        struct ice_netdev_priv *np = netdev_priv(netdev);
2995        struct ice_vsi *vsi = np->vsi;
2996        struct ice_pf *pf = vsi->back;
2997        int ret = 0, i;
2998        u8 *lut;
2999
3000        if (hfunc)

3001                *hfunc = ETH_RSS_HASH_TOP;
3002
3003        if (!indir)
3004                return 0;
3005
3006        if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3007                /* RSS not supported return error here */
3008                netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3009                return -EIO;
3010        }
3011
3012        lut = devm_kzalloc(&pf->pdev->dev, vsi->rss_table_size, GFP_KERNEL);
3013        if (!lut)
3014                return -ENOMEM;
3015
3016        if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
3017                ret = -EIO;
3018                goto out;
3019        }
3020
3021        for (i = 0; i < vsi->rss_table_size; i++)
3022                indir[i] = (u32)(lut[i]);
3023
3024out:
3025        devm_kfree(&pf->pdev->dev, lut);
3026        return ret;
3027}
3028
3029/**
3030 * ice_set_rxfh - set the Rx flow hash indirection table
3031 * @netdev: network interface device structure
3032 * @indir: indirection table
3033 * @key: hash key
3034 * @hfunc: hash function
3035 *
3036 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3037 * returns 0 after programming the table.
3038 */
3039static int
3040ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3041             const u8 hfunc)
3042{
3043        struct ice_netdev_priv *np = netdev_priv(netdev);
3044        struct ice_vsi *vsi = np->vsi;
3045        struct ice_pf *pf = vsi->back;
3046        u8 *seed = NULL;
3047
3048        if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3049                return -EOPNOTSUPP;
3050
3051        if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3052                /* RSS not supported return error here */
3053                netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3054                return -EIO;
3055        }
3056
3057        if (key) {
3058                if (!vsi->rss_hkey_user) {
3059                        vsi->rss_hkey_user =
3060                                devm_kzalloc(&pf->pdev->dev,
3061                                             ICE_VSIQF_HKEY_ARRAY_SIZE,
3062                                             GFP_KERNEL);
3063                        if (!vsi->rss_hkey_user)
3064                                return -ENOMEM;
3065                }
3066                memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3067                seed = vsi->rss_hkey_user;
3068        }
3069
3070        if (!vsi->rss_lut_user) {
3071                vsi->rss_lut_user = devm_kzalloc(&pf->pdev->dev,
3072                                                 vsi->rss_table_size,
3073                                                 GFP_KERNEL);
3074                if (!vsi->rss_lut_user)
3075                        return -ENOMEM;
3076        }
3077
3078        /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3079        if (indir) {
3080                int i;
3081
3082                for (i = 0; i < vsi->rss_table_size; i++)
3083                        vsi->rss_lut_user[i] = (u8)(indir[i]);
3084        } else {
3085                ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3086                                 vsi->rss_size);
3087        }
3088
3089        if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
3090                return -EIO;
3091
3092        return 0;
3093}
3094
3095enum ice_container_type {
3096        ICE_RX_CONTAINER,
3097        ICE_TX_CONTAINER,
3098};
3099
3100/**
3101 * ice_get_rc_coalesce - get ITR values for specific ring container
3102 * @ec: ethtool structure to fill with driver's coalesce settings
3103 * @c_type: container type, Rx or Tx
3104 * @rc: ring container that the ITR values will come from
3105 *
3106 * Query the device for ice_ring_container specific ITR values. This is
3107 * done per ice_ring_container because each q_vector can have 1 or more rings
3108 * and all of said ring(s) will have the same ITR values.
3109 *
3110 * Returns 0 on success, negative otherwise.
3111 */
3112static int
3113ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type,
3114                    struct ice_ring_container *rc)
3115{
3116        struct ice_pf *pf;
3117
3118        if (!rc->ring)
3119                return -EINVAL;
3120
3121        pf = rc->ring->vsi->back;
3122
3123        switch (c_type) {
3124        case ICE_RX_CONTAINER:
3125                ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3126                ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3127                ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl;
3128                break;
3129        case ICE_TX_CONTAINER:
3130                ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3131                ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3132                break;
3133        default:
3134                dev_dbg(&pf->pdev->dev, "Invalid c_type %d\n", c_type);
3135                return -EINVAL;
3136        }
3137
3138        return 0;
3139}
3140
3141/**
3142 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3143 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3144 * @ec: coalesce settings to program the device with
3145 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3146 *
3147 * Return 0 on success, and negative under the following conditions:
3148 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3149 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3150 */
3151static int
3152ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3153{
3154        if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3155                if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3156                                        &vsi->rx_rings[q_num]->q_vector->rx))
3157                        return -EINVAL;
3158                if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3159                                        &vsi->tx_rings[q_num]->q_vector->tx))
3160                        return -EINVAL;
3161        } else if (q_num < vsi->num_rxq) {
3162                if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3163                                        &vsi->rx_rings[q_num]->q_vector->rx))
3164                        return -EINVAL;
3165        } else if (q_num < vsi->num_txq) {
3166                if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3167                                        &vsi->tx_rings[q_num]->q_vector->tx))
3168                        return -EINVAL;
3169        } else {
3170                return -EINVAL;
3171        }
3172
3173        return 0;
3174}
3175
3176/**
3177 * __ice_get_coalesce - get ITR/INTRL values for the device
3178 * @netdev: pointer to the netdev associated with this query
3179 * @ec: ethtool structure to fill with driver's coalesce settings
3180 * @q_num: queue number to get the coalesce settings for
3181 *
3182 * If the caller passes in a negative q_num then we return coalesce settings
3183 * based on queue number 0, else use the actual q_num passed in.
3184 */
3185static int
3186__ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3187                   int q_num)
3188{
3189        struct ice_netdev_priv *np = netdev_priv(netdev);
3190        struct ice_vsi *vsi = np->vsi;
3191
3192        if (q_num < 0)
3193                q_num = 0;
3194
3195        if (ice_get_q_coalesce(vsi, ec, q_num))
3196                return -EINVAL;
3197
3198        return 0;
3199}
3200
3201static int
3202ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3203{
3204        return __ice_get_coalesce(netdev, ec, -1);
3205}
3206
3207static int
3208ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3209                       struct ethtool_coalesce *ec)
3210{
3211        return __ice_get_coalesce(netdev, ec, q_num);
3212}
3213
3214/**
3215 * ice_set_rc_coalesce - set ITR values for specific ring container
3216 * @c_type: container type, Rx or Tx
3217 * @ec: ethtool structure from user to update ITR settings
3218 * @rc: ring container that the ITR values will come from
3219 * @vsi: VSI associated to the ring container
3220 *
3221 * Set specific ITR values. This is done per ice_ring_container because each
3222 * q_vector can have 1 or more rings and all of said ring(s) will have the same
3223 * ITR values.
3224 *
3225 * Returns 0 on success, negative otherwise.
3226 */
3227static int
3228ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
3229                    struct ice_ring_container *rc, struct ice_vsi *vsi)
3230{
3231        const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx";
3232        u32 use_adaptive_coalesce, coalesce_usecs;
3233        struct ice_pf *pf = vsi->back;
3234        u16 itr_setting;
3235
3236        if (!rc->ring)
3237                return -EINVAL;
3238
3239        switch (c_type) {
3240        case ICE_RX_CONTAINER:
3241                if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3242                    (ec->rx_coalesce_usecs_high &&
3243                     ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3244                        netdev_info(vsi->netdev,
3245                                    "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3246                                    c_type_str, pf->hw.intrl_gran,
3247                                    ICE_MAX_INTRL);
3248                        return -EINVAL;
3249                }
3250                if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) {
3251                        rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high;
3252                        wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx),
3253                             ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high,
3254                                                   pf->hw.intrl_gran));
3255                }
3256
3257                use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3258                coalesce_usecs = ec->rx_coalesce_usecs;
3259
3260                break;
3261        case ICE_TX_CONTAINER:
3262                if (ec->tx_coalesce_usecs_high) {
3263                        netdev_info(vsi->netdev,
3264                                    "setting %s-usecs-high is not supported\n",
3265                                    c_type_str);
3266                        return -EINVAL;
3267                }
3268
3269                use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3270                coalesce_usecs = ec->tx_coalesce_usecs;
3271
3272                break;
3273        default:
3274                dev_dbg(&pf->pdev->dev, "Invalid container type %d\n", c_type);
3275                return -EINVAL;
3276        }
3277
3278        itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3279        if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3280                netdev_info(vsi->netdev,
3281                            "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3282                            c_type_str, c_type_str);
3283                return -EINVAL;
3284        }
3285
3286        if (coalesce_usecs > ICE_ITR_MAX) {
3287                netdev_info(vsi->netdev,
3288                            "Invalid value, %s-usecs range is 0-%d\n",
3289                            c_type_str, ICE_ITR_MAX);
3290                return -EINVAL;
3291        }
3292
3293        /* hardware only supports an ITR granularity of 2us */
3294        if (coalesce_usecs % 2 != 0) {
3295                netdev_info(vsi->netdev,
3296                            "Invalid value, %s-usecs must be even\n",
3297                            c_type_str);
3298                return -EINVAL;
3299        }
3300
3301        if (use_adaptive_coalesce) {
3302                rc->itr_setting |= ICE_ITR_DYNAMIC;
3303        } else {
3304                /* store user facing value how it was set */
3305                rc->itr_setting = coalesce_usecs;
3306                /* set to static and convert to value HW understands */
3307                rc->target_itr =
3308                        ITR_TO_REG(ITR_REG_ALIGN(rc->itr_setting));
3309        }
3310
3311        return 0;
3312}
3313
3314/**
3315 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3316 * @vsi: VSI associated to the queue that need updating
3317 * @ec: coalesce settings to program the device with
3318 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3319 *
3320 * Return 0 on success, and negative under the following conditions:
3321 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3322 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3323 */
3324static int
3325ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3326{
3327        if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3328                if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3329                                        &vsi->rx_rings[q_num]->q_vector->rx,
3330                                        vsi))
3331                        return -EINVAL;
3332
3333                if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3334                                        &vsi->tx_rings[q_num]->q_vector->tx,
3335                                        vsi))
3336                        return -EINVAL;
3337        } else if (q_num < vsi->num_rxq) {
3338                if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3339                                        &vsi->rx_rings[q_num]->q_vector->rx,
3340                                        vsi))
3341                        return -EINVAL;
3342        } else if (q_num < vsi->num_txq) {
3343                if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3344                                        &vsi->tx_rings[q_num]->q_vector->tx,
3345                                        vsi))
3346                        return -EINVAL;
3347        } else {
3348                return -EINVAL;
3349        }
3350
3351        return 0;
3352}
3353
3354/**
3355 * __ice_set_coalesce - set ITR/INTRL values for the device
3356 * @netdev: pointer to the netdev associated with this query
3357 * @ec: ethtool structure to fill with driver's coalesce settings
3358 * @q_num: queue number to get the coalesce settings for
3359 *
3360 * If the caller passes in a negative q_num then we set the coalesce settings
3361 * for all Tx/Rx queues, else use the actual q_num passed in.
3362 */
3363static int
3364__ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3365                   int q_num)
3366{
3367        struct ice_netdev_priv *np = netdev_priv(netdev);
3368        struct ice_vsi *vsi = np->vsi;
3369
3370        if (q_num < 0) {
3371                int i;
3372
3373                ice_for_each_q_vector(vsi, i) {
3374                        if (ice_set_q_coalesce(vsi, ec, i))
3375                                return -EINVAL;
3376                }
3377                goto set_complete;
3378        }
3379
3380        if (ice_set_q_coalesce(vsi, ec, q_num))
3381                return -EINVAL;
3382
3383set_complete:
3384
3385        return 0;
3386}
3387
3388static int
3389ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3390{
3391        return __ice_set_coalesce(netdev, ec, -1);
3392}
3393
3394static int
3395ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3396                       struct ethtool_coalesce *ec)
3397{
3398        return __ice_set_coalesce(netdev, ec, q_num);
3399}
3400
3401static const struct ethtool_ops ice_ethtool_ops = {
3402        .get_link_ksettings     = ice_get_link_ksettings,
3403        .set_link_ksettings     = ice_set_link_ksettings,
3404        .get_drvinfo            = ice_get_drvinfo,
3405        .get_regs_len           = ice_get_regs_len,
3406        .get_regs               = ice_get_regs,
3407        .get_msglevel           = ice_get_msglevel,
3408        .set_msglevel           = ice_set_msglevel,
3409        .self_test              = ice_self_test,
3410        .get_link               = ethtool_op_get_link,
3411        .get_eeprom_len         = ice_get_eeprom_len,
3412        .get_eeprom             = ice_get_eeprom,
3413        .get_coalesce           = ice_get_coalesce,
3414        .set_coalesce           = ice_set_coalesce,
3415        .get_strings            = ice_get_strings,
3416        .set_phys_id            = ice_set_phys_id,
3417        .get_ethtool_stats      = ice_get_ethtool_stats,
3418        .get_priv_flags         = ice_get_priv_flags,
3419        .set_priv_flags         = ice_set_priv_flags,
3420        .get_sset_count         = ice_get_sset_count,
3421        .get_rxnfc              = ice_get_rxnfc,
3422        .get_ringparam          = ice_get_ringparam,
3423        .set_ringparam          = ice_set_ringparam,
3424        .nway_reset             = ice_nway_reset,
3425        .get_pauseparam         = ice_get_pauseparam,
3426        .set_pauseparam         = ice_set_pauseparam,
3427        .get_rxfh_key_size      = ice_get_rxfh_key_size,
3428        .get_rxfh_indir_size    = ice_get_rxfh_indir_size,
3429        .get_rxfh               = ice_get_rxfh,
3430        .set_rxfh               = ice_set_rxfh,
3431        .get_ts_info            = ethtool_op_get_ts_info,
3432        .get_per_queue_coalesce = ice_get_per_q_coalesce,
3433        .set_per_queue_coalesce = ice_set_per_q_coalesce,
3434        .get_fecparam           = ice_get_fecparam,
3435        .set_fecparam           = ice_set_fecparam,
3436};
3437
3438static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
3439        .get_link_ksettings     = ice_get_link_ksettings,
3440        .set_link_ksettings     = ice_set_link_ksettings,
3441        .get_drvinfo            = ice_get_drvinfo,
3442        .get_regs_len           = ice_get_regs_len,
3443        .get_regs               = ice_get_regs,
3444        .get_msglevel           = ice_get_msglevel,
3445        .set_msglevel           = ice_set_msglevel,
3446        .get_eeprom_len         = ice_get_eeprom_len,
3447        .get_eeprom             = ice_get_eeprom,
3448        .get_strings            = ice_get_strings,
3449        .get_ethtool_stats      = ice_get_ethtool_stats,
3450        .get_sset_count         = ice_get_sset_count,
3451        .get_ringparam          = ice_get_ringparam,
3452        .set_ringparam          = ice_set_ringparam,
3453        .nway_reset             = ice_nway_reset,
3454};
3455
3456/**
3457 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
3458 * @netdev: network interface device structure
3459 */
3460void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
3461{
3462        netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
3463}
3464
3465/**
3466 * ice_set_ethtool_ops - setup netdev ethtool ops
3467 * @netdev: network interface device structure
3468 *
3469 * setup netdev ethtool ops with ice specific ops
3470 */
3471void ice_set_ethtool_ops(struct net_device *netdev)
3472{
3473        netdev->ethtool_ops = &ice_ethtool_ops;
3474}
3475